-The process by which organisms maintain, control, and coordinate their internal environment with a constantly changing external environment

Size: px
Start display at page:

Download "-The process by which organisms maintain, control, and coordinate their internal environment with a constantly changing external environment"

Transcription

1

2 -The process by which organisms maintain, control, and coordinate their internal environment with a constantly changing external environment -It is all of the activities that help to maintain an organism s

3 Homeostasis: the ability to maintain relatively constant internal conditions even though the external world changes continuously Within cells Within body

4 1.Nervous System nerve control (action/reaction) 2. Endocrine System- chemical control (hormones/receptors) -Process by which the product of a system shuts Down a system or limits its operation Ex: Home heating system Blood Sugar Level Shivering Menstrual Cycle

5 Homeostasis Maintained until another change occurs Change Detected/ System turned on System Limited or Shut down System Responds with production Homeostasis achieved

6

7 Stimulus- Changes that cause a response Ex: Light, sound Response- Reaction to a stimulus Neuron- Nerve cell that transmits impulses throughout the body Dendrites- detect stimulus Cyton-(Cell body) Contains nucleus and organelles

8 Axon- Connects cyton to terminal branches (elongated portion) Terminal Branches- end of neuron. Secretes neurotransmitters that allow impulses to jump over synapses Synapse- Gap between neurons Neurotransmitters-special chemical that allows impulses to jump synapses Impulse- An electrochemical charge that transmits information (the message)

9 Receptor Organ- Organs that receive stimuli (action) Ex: Eyes, ears, nose, skin, tongue Effectors- Muscles or glands that respond To stimuli (reaction) Dendrites Nucleus Terminal Branches Axon Synapse Myelin Sheath Cell body (Cyton)

10 How does the Nervous System maintain homeostasis? -by maintaining nerve control (action/reaction) What are the basic functional units of the human Nervous System? -Neurons -Nerves -Central Nervous System (CNS) -Peripheral Nervous System (PNS)

11 3 Types: Receive stimuli from the environment and transmit this information to the CNS for interpretation. Sensory receptor organs include: eyes, ears, nose, tongue, skin Transmit impulses from the CNS to the Effectors (muscles and glands) where an Appropriate response is initiated. Relay nerve impulses between sensory and motor neurons.

12 -A bundle of neurons all together (a tissue). They transmit impulses over long distances at high rates of speed.

13

14

15 Cell X is sending A message to Cell Y If a drug was being developed to block the action Of neurotransmitter A, what shape should the drug have?

16 -Impulse traveling -Neurons communicating

17 Pathway Example 1. Stimulus Heat from a stove 2. Receptor organ Nerves in skin of finger (any sense organ) 3. Sensory Neurons Carries impulses to the spinal cord 4. Interneurons Found in spinal cord. Connect Sensory to motor 5. Motor Neurons Carries impulses to effectors

18 6. Effector Muscles in arm 7. Response Pulling finger away from stove

19

20 What does the CNS consist of? -Brain -Spinal Cord What does the CNS do? -Relays messages -Processes and analyzes information ( Command Center )

21 How is the CNS protected? -The brain is protected by the SKULL -The spinal cord is protected by the VERTEBRAE How does the brain maintain homeostasis? -Regulates ALL activity -Stores memory and interprets what is happening

22 Division: Cerebrum Location: Top/Front (Largest part of brain) Function: -Regulates conscious, voluntary actions -Conditioned behaviors (habits) are centered here -Site of intelligence, learning, and judgment Examples: Thought, memory, reasoning, sense interpretation, speech

23 Division: Cerebellum Location: Rear of cranium Function: -Coordinates muscular activities and balance Examples: Coordination, walking, running, fine motor skills Division: Medulla Location: Base of brain Function: Coordinates involuntary activities Examples: Breathing, heart rate, blood pressure, peristalsis

24 Structure: Hypothalamus Location: Base of brain Function: -(Sensor) Gland that detects hunger, thirst, fatigue, anger, body temperature, blood sugar level Structure: Thalamus Location: Base of brain Function: -Recognizes messages from sense organs

25 Medulla

26

27 Right Brain -Controls left side of the body Processes: -Creativity, Artistic Ability -Patterns, Spatial awareness It Recognizes: -Faces -Places -Objects Left Brain -Controls right side of body Processes: -Analytical and Mathematical ability -Speech, time, sequences It Recognizes: -Letters -Words -Numbers

28 Why is the spinal cord part of the CNS? -It is continuous with the brain (Connected at the medulla) How does the spinal cord maintain homeostasis? -It is the center for reflex actions -Coordinates activity between brain and body structures Why is there fluid surrounding the Brain and Spinal Cord? -Shock absorbency and nourishment

29 INVOLUNTARY Sensory Receptor (found in sensory organ) Motor Neuron (sends impulse to effector) Sensory Neuron (receive stimulus; found in receptor) Interneuron (in spinal cord; interprets information) Effector (reaction)

30 How fast does this happen? -Completed BEFORE the cerebrum is even aware of the initial stimulus!!! What is the PNS? -consists of nerves extending throughout the body How does the PNS maintain homeostasis? -Receives information for and relays commands from the CNS Where is the PNS located? -Located outside of the CNS

31

32 -consists of nerves that control the VOLUNTARY muscles of the skeleton -Consists of nerves regulating INVOLUNTARY (automatic) functions (actions of glands and involuntary muscles)

33

34 Cerebral Palsy: -brain damage just before or after birth that affects a person s ability to control body movements and muscle coordination Caused by: Lack of oxygen to the brain Treatment: Most damage irreversible Victims usually undergo extensive physical therapy and in some cases surgery is required

35 Multiple Sclerosis: -Nerve disorder in which victims suffer from blurred vision, slurred speech, and shaky hands due to the fatty coverings of axons in brain or spinal cord being destroyed. Caused by: No definite known cause (linked to Genetics, environmental factors, and Geographical factors) Treatment: No cure

36 Alzheimer s Disease: -Victims suffer from memory loss, inability To think, speak, or care for oneself Caused by: Treatment: No known cause No cure. Usually fatal Parkinson s Disease: -Victims suffer from shaking, poor balance, and stiffening of muscles due to loss of function of neurons in brain Caused by: No known cause Treatment: No cure.

37

What two body systems work together to carry Out regulation?

What two body systems work together to carry Out regulation? What is regulation? -The process by which organisms maintain, control, and coordinate their internal environment with a constantly changing external environment -It is all of the activities that help to

More information

Biology 3201 Unit 1: Maintaining Dynamic Equilibrium II

Biology 3201 Unit 1: Maintaining Dynamic Equilibrium II Biology 3201 Unit 1: Maintaining Dynamic Equilibrium II Ch. 12 The Nervous System (Introduction and Anatomy) The Nervous System - Introduction Cells, tissues, organs and organ systems must maintain a biological

More information

Biology. Slide 1 of 37. End Show. Copyright Pearson Prentice Hall

Biology. Slide 1 of 37. End Show. Copyright Pearson Prentice Hall Biology 1 of 37 35-3 Divisions of the Nervous 2 of 37 The Nervous The human nervous system has two major divisions: central nervous system peripheral nervous system 3 of 37 The Central Nervous The Central

More information

Objectives. ! Describe the major structures of the nervous system. ! Explain how a nerve impulse is transmitted.

Objectives. ! Describe the major structures of the nervous system. ! Explain how a nerve impulse is transmitted. Objectives! Describe the major structures of the nervous system.! Explain how a nerve impulse is transmitted.! Distinguish between the functions of the central and peripheral nervous systems.! Identify

More information

Five Levels of Organization Cell Tissue Organ Organ System Organism

Five Levels of Organization Cell Tissue Organ Organ System Organism 28.1 35.1 Levels Human of Body Organization Systems Five Levels of Organization Cell Tissue Organ Organ System Organism ORGANS ORGAN SYSTEM ORGANISM 28.1 35.1 Levels Human of Body Organization Systems

More information

The Nervous System II Neurons

The Nervous System II Neurons The Nervous System II Neurons Review Nervous System What is it? The system that receives, processes, stores and transmits information that comes from various parts of the body and the external world. Composed

More information

The nervous system regulates most body systems using direct connections called nerves. It enables you to sense and respond to stimuli

The nervous system regulates most body systems using direct connections called nerves. It enables you to sense and respond to stimuli The nervous system regulates most body systems using direct connections called nerves. It enables you to sense and respond to stimuli The basic function of nervous system are: Receive sensory input internal

More information

The Nervous System. We have covered many different body systems which automatically control and regulate our bodies.

The Nervous System. We have covered many different body systems which automatically control and regulate our bodies. The Nervous System The Nervous System We have covered many different body systems which automatically control and regulate our bodies. There is one master system which controls all of these other systems.

More information

Biology 3201 Quiz on Nervous System. Total 33 points

Biology 3201 Quiz on Nervous System. Total 33 points Biology 3201 Quiz on Nervous System Total 33 points Name: Circle the best response to the following: (33 points) 1. What do we call the long fibre that carries impulses away from the nerve cell body? A.

More information

WHAT ARE THE FUNCTIONS OF THE NERVOUS SYSTEM?

WHAT ARE THE FUNCTIONS OF THE NERVOUS SYSTEM? THE NERVOUS SYSTEM LEARNING OBJECTIVES To state the function of the Nervous system. To describe the structure and workings of the nervous system. To name the major parts of the nervous system. To describe

More information

35-2 The Nervous System

35-2 The Nervous System 1 of 38 Do Now Finish the matching quiz. You may use your brain hat to help you. 2 of 38 35-2 The Nervous System What are the functions of the nervous system? 3 of 38 35-2 The Nervous System The nervous

More information

The Nervous System. Nerves, nerves everywhere!

The Nervous System. Nerves, nerves everywhere! The Nervous System Nerves, nerves everywhere! Purpose of the Nervous System The information intake and response system of the body. Coordinates all body functions, voluntary and involuntary! Responds to

More information

Nervous System. Chapter Structure of the Nervous System. Neurons

Nervous System. Chapter Structure of the Nervous System. Neurons 33.1 Structure of the Neurons Neurons are specialized nerve cells that help you gather information about your environment, interpret the information, and react to it. Neurons consist of three main regions:

More information

Nervous system. Made up of. Peripheral nervous system. Central nervous system. The central nervous system The peripheral nervous system.

Nervous system. Made up of. Peripheral nervous system. Central nervous system. The central nervous system The peripheral nervous system. Made up of The central nervous system The peripheral nervous system Nervous system Central nervous system Peripheral nervous system Brain Spinal Cord Cranial nerve Spinal nerve branch from the brain connect

More information

Nervous System. Lesson 11

Nervous System. Lesson 11 Nervous System Lesson 11 Reflex Arcs 1. Patellar reflex Causes leg to kick up 2. Achilles reflex Causes foot to jerk forward 3. Triceps reflex Causes arm to straighten 4. Babinski reflex 4. Pupil Dilation

More information

Chapter 6 Section 1. The Nervous System: The Basic Structure

Chapter 6 Section 1. The Nervous System: The Basic Structure Chapter 6 Section 1 The Nervous System: The Basic Structure Essential Question: How does studying the biology of the brain give us an understanding of our behavior? Draw or type 2 things you already know

More information

Class X: Biology. Chapter 2: Control and coordination.

Class X: Biology. Chapter 2: Control and coordination. Class X: Biology Chapter 2: Control and coordination. Chapter Notes Key learnings: 1) A system of control and coordination is essential in living organisms so that the different body parts can function

More information

THE NEURON: A CELL FOR RAPID COMMUNICATION

THE NEURON: A CELL FOR RAPID COMMUNICATION The only way in which cells communicate is chemically. Communication for a cell means having chemicals moving into and out of it. We will now see how the work of the two organ systems responsible for integration

More information

Lesson 14. The Nervous System. Introduction to Life Processes - SCI 102 1

Lesson 14. The Nervous System. Introduction to Life Processes - SCI 102 1 Lesson 14 The Nervous System Introduction to Life Processes - SCI 102 1 Structures and Functions of Nerve Cells The nervous system has two principal cell types: Neurons (nerve cells) Glia The functions

More information

After you read this section, you should be able to answer these questions:

After you read this section, you should be able to answer these questions: CHAPTER 17 1 The Nervous System SECTION Communication and Control 7.5.a, 7.5.b California Science Standards BEFORE YOU READ After you read this section, you should be able to answer these questions: What

More information

35-2 The Nervous System Slide 1 of 38

35-2 The Nervous System Slide 1 of 38 1 of 38 35-2 The Nervous System The nervous system controls and coordinates functions throughout the body and responds to internal and external stimuli. 2 of 38 Neurons Neurons The messages carried by

More information

Chapter 6. Body and Behavior

Chapter 6. Body and Behavior Chapter 6 Body and Behavior Section 1 The Nervous System: The Basic Structure How the nervous system works Central nervous system (CNS)- the brain and spinal cord Spinal cord- nerves that run up and down

More information

Biology 3201 Nervous System #2- Anatomy. Components of a Nervous System

Biology 3201 Nervous System #2- Anatomy. Components of a Nervous System Biology 3201 Nervous System #2- Anatomy Components of a Nervous System In any nervous system, there are 4 main components: (1) sensors: gather information from the external environment (sense organs) (2)

More information

Bio11: The Nervous System. Body control systems. The human brain. The human brain. The Cerebrum. What parts of your brain are you using right now?

Bio11: The Nervous System. Body control systems. The human brain. The human brain. The Cerebrum. What parts of your brain are you using right now? Bio11: The Nervous System Body control systems Nervous system Quick Sends message directly to target organ Endocrine system Sends a hormone as a messenger to the target organ Can target several organs

More information

THE NERVOUS SYSTEM. Station 9 : THE SPINAL CORD

THE NERVOUS SYSTEM. Station 9 : THE SPINAL CORD Station 9 : THE SPINAL CORD The spinal cord is a long thin bundle of nerve cells that extends from the medulla of the brainstem all the way down the vertebral column. The spinal cord is made up of gray

More information

Chapter Six Review Sections 1 and 2

Chapter Six Review Sections 1 and 2 NAME PER DATE Chapter Six Review Sections 1 and 2 Matching: 1. afferent nerves 2. autonomic nervous system 3. cell body 4. central nervous system (CNS) 5. dendrites 6. efferent nerves 7. myelin sheath

More information

The Nervous System. Two Systems Within a System. 526 Chapter 17

The Nervous System. Two Systems Within a System. 526 Chapter 17 1 The Nervous System Key Concept Your nervous system is an organ system that gathers, interprets, and responds to sensory information. What You Will Learn The central nervous system processes and responds

More information

Name Class Date. Read the words in the box. Read the sentences. Fill in each blank with the word or phrase that best completes the sentence.

Name Class Date. Read the words in the box. Read the sentences. Fill in each blank with the word or phrase that best completes the sentence. Skills Worksheet Directed Reading B Section: The Nervous System TWO SYSTEMS WITHIN A SYSTEM 1. What does the nervous system do? a. pump blood b. gather and interpret information c. digest food d. eliminate

More information

H. composed of the brain and spinal cord.

H. composed of the brain and spinal cord. Mrs. Keadle H Science Name period date assigned date due date returned Match the following vocabulary words to their definition. Please write a capital letter in the blank. 1. central nervous system 2.

More information

Main Function: signal other cells to behave in certain. of communication.

Main Function: signal other cells to behave in certain. of communication. Main Function: It releases hormones into the blood to signal other cells to behave in certain ways. It is a slow but widespread form of communication. Consists of: Endocrine glands Release hormones into

More information

Homeostasis Practice Quiz 20 Questions SBI 4UI

Homeostasis Practice Quiz 20 Questions SBI 4UI Homeostasis Practice Quiz 20 Questions SBI 4UI Question 1 Which system reverses a change in a variable, bringing it back to within a normal range? a. negative feedback system b. positive feedback system

More information

Body control systems. Let s start at the top: the human brain. The Cerebrum. The human brain. What parts of your brain are you using right now?

Body control systems. Let s start at the top: the human brain. The Cerebrum. The human brain. What parts of your brain are you using right now? What parts of your brain are you using right now? Body control systems Quick Sends message directly to target organ Endocrine system Frontal lobe Parietal lobe Movement and conscious thought; Frontal speech

More information

Chapter 17 Nervous System

Chapter 17 Nervous System Chapter 17 Nervous System 1 The Nervous System Two Anatomical Divisions Central Nervous System (CNS) Brain and Spinal Cord Peripheral Nervous System (PNS) Two Types of Cells Neurons Transmit nerve impulses

More information

The Nervous System. The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind.

The Nervous System. The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind. The Nervous System The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind. Central Nervous System Made up of brain and spinal cord

More information

Name Class Date. KEY CONCEPT The nervous system and the endocrine system provide the means by which organ systems communicate.

Name Class Date. KEY CONCEPT The nervous system and the endocrine system provide the means by which organ systems communicate. Section 1: How Organ Systems Communicate KEY CONCEPT The nervous system and the endocrine system provide the means by which organ systems communicate. VOCABULARY nervous system central nervous system (CNS)

More information

Chapter 34 The Nervous System:

Chapter 34 The Nervous System: Chapter 34 The Nervous System: 3.5 Learning Objectives 3.5.3 Responses in the human 1. The nervous system: two-part division into the CNS and the PNS. 2. Neurons, name 3 types, give structure and function

More information

Chapter 22. The Nervous and Endocrine Systems Worksheets. 561

Chapter 22. The Nervous and Endocrine Systems Worksheets. 561 Chapter 22 The Nervous and Endocrine Systems Worksheets (Opening image copyright by Sebastian Kaulitzki, 2010. Used under license from Shutterstock.com.) Lesson 22.1: The Nervous System Lesson 22.2: The

More information

Nervous System Integumentary System Skeletal System Muscular System Circulatory System

Nervous System Integumentary System Skeletal System Muscular System Circulatory System Nervous System Integumentary System Skeletal System Muscular System Circulatory System Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic/Immune Systems

More information

Axon Nerve impulse. Axoplasm Receptor. Axomembrane Stimuli. Schwann cell Effector. Myelin Cell body

Axon Nerve impulse. Axoplasm Receptor. Axomembrane Stimuli. Schwann cell Effector. Myelin Cell body Nervous System Review 1. Explain a reflex arc. 2. Know the structure, function and location of a sensory neuron, interneuron, and motor neuron 3. What is (a) Neuron Axon Nerve impulse Axoplasm Receptor

More information

The Nervous System. Chapter 35: Biology II

The Nervous System. Chapter 35: Biology II The Nervous System Chapter 35: Biology II Anatomy and Physiology Anatomy: the study of structure Physiology: The study of how living organisms function, including such processes as nutrition, movement,

More information

15-2: Divisions of the Nervous System. 7 th Grade Life Science

15-2: Divisions of the Nervous System. 7 th Grade Life Science 7 th Grade Life Science Purpose Students will be able to: 1. Identify the functions of the nervous system. 2. Describe the structure of a neuron and the kinds of neurons found in the body. 3. Explain how

More information

The Nervous System. B. The Components: 1) Nerve Cells Neurons are the cells of the body and are specialized to carry messages through an process.

The Nervous System. B. The Components: 1) Nerve Cells Neurons are the cells of the body and are specialized to carry messages through an process. The Nervous System A. The Divisions: 1) The Central Nervous System includes the and. The brain contains billions of nerve cells called, and trillions of support cells called. 2) The Peripheral Nervous

More information

The Nervous System and the Endocrine System

The Nervous System and the Endocrine System The Nervous System and the Endocrine System Neurons: The Building Blocks of the Nervous System Nervous System The electrochemical communication system of the body Sends messages from the brain to the

More information

Nervous System and Brain Review. Bio 3201

Nervous System and Brain Review. Bio 3201 Nervous System and Brain Review Bio 3201 Dont worry about: glial cells Oligodendrocytes Satelite cells etc Nervous System - Vital to maintaining homeostasis in organisms - Comprised of : brain, spinal

More information

15-1: How the Nervous System Works. 7 th Grade Life Science

15-1: How the Nervous System Works. 7 th Grade Life Science 7 th Grade Life Science Purpose Students will be able to: 1. Identify the functions of the nervous system. 2. Describe the structure of a neuron and the kinds of neurons found in the body. 3. Explain how

More information

THE CONTROL SYSTEMS NERVOUS AND ENDOCRINE

THE CONTROL SYSTEMS NERVOUS AND ENDOCRINE THE CONTROL SYSTEMS NERVOUS AND ENDOCRINE Introduction to nervous system There are 3 main parts to your Nervous System 1. Your Nerves 2. Your Brain 3. Your Spinal Cord Your Nerves Your nerves are made

More information

Neurons Chapter 7 2/19/2016. Learning Objectives. Cells of the Nervous System. Cells of the Nervous System. Cells of the Nervous System

Neurons Chapter 7 2/19/2016. Learning Objectives. Cells of the Nervous System. Cells of the Nervous System. Cells of the Nervous System Learning Objectives Neurons Chapter 7 Identify and describe the functions of the two main divisions of the nervous system. Differentiate between a neuron and neuroglial cells in terms of structure and

More information

Nervous System. Unit 6.6 (6 th Edition) Chapter 7.6 (7 th Edition)

Nervous System. Unit 6.6 (6 th Edition) Chapter 7.6 (7 th Edition) Nervous System Unit 6.6 (6 th Edition) Chapter 7.6 (7 th Edition) 1 Learning Objectives Identify the main parts (anatomy) of a neuron. Identify the 2 divisions of nervous system. Classify the major types

More information

Why does the writer above love running so much? One of the reasons. The Nervous System: The Basic Structure. Reader s Guide. Exploring Psychology

Why does the writer above love running so much? One of the reasons. The Nervous System: The Basic Structure. Reader s Guide. Exploring Psychology The Nervous System: The Basic Structure Reader s Guide Main Idea Learning about the nervous system helps us know how messages that are sent to the brain cause behavior. Vocabulary central nervous system

More information

The Nervous System SBI4U

The Nervous System SBI4U SBI4U The Nervous System Central Nervous System (CNS): consists of the brain and spinal cord Acts as the coordinating centre for incoming and outgoing information Peripheral Nervous System (PNS): consists

More information

Anatomy and Physiology 2

Anatomy and Physiology 2 Anatomy and Physiology 2 The Nervous System Nerves allows organisms to detect and respond to stimuli by transmitting electrical impulses cell to cell. Can send info at high speeds! Neurons are the smallest

More information

THE NERVOUS SYSTEM III

THE NERVOUS SYSTEM III THE NERVOUS SYSTEM III Small Review Review What is this? A neuron What does it do? Receives and transmits information Sending a signal How are signals sent in the nervous system? Message travels from neuron

More information

Nervous System C H A P T E R 2

Nervous System C H A P T E R 2 Nervous System C H A P T E R 2 Input Output Neuron 3 Nerve cell Allows information to travel throughout the body to various destinations Receptive Segment Cell Body Dendrites: receive message Myelin sheath

More information

Neurons, Synapses, and Signaling

Neurons, Synapses, and Signaling Neurons, Synapses, and Signaling The Neuron is the functional unit of the nervous system. Neurons are composed of a cell body, which contains the nucleus and organelles; Dendrites which are extensions

More information

Body control systems. Nervous system. Organization of Nervous Systems. The Nervous System. Two types of cells. Organization of Nervous System

Body control systems. Nervous system. Organization of Nervous Systems. The Nervous System. Two types of cells. Organization of Nervous System Body control systems Nervous system Nervous system Quick Sends message directly to target organ Endocrine system Sends a hormone as a messenger to the target organ Slower acting Longer lasting response

More information

Biological Psychology. Key Point for this Unit: Everything psychological is simultaneously biological!!

Biological Psychology. Key Point for this Unit: Everything psychological is simultaneously biological!! Biological Psychology Key Point for this Unit: Everything psychological is simultaneously biological!! NEURON Dendrites Dendrites receive messages from other cells and conduct impulses toward the cell

More information

Chapter 28 NERVOUS SYSTEM

Chapter 28 NERVOUS SYSTEM Chapter 28 NERVOUS SYSTEM Functions of Nervous Tissue 1. Sensory Input: Conduction of signals from sensory organs (eyes, ears, nose, skin, etc.) to information processing centers (brain and spinal cord).

More information

1. Use the following words to complete the text below. Terms may be used more than once.

1. Use the following words to complete the text below. Terms may be used more than once. THE NERVOUS AND MUSCULOSKELETAL SYSTEMS Nervous system, neuron, nerve impulse, peripheral nervous system, nerves STUDENT BOOK Ch. 7, pp. 202 206 1. Use the following words to complete the text below. Terms

More information

Human Nervous System. The nervous system has three functions

Human Nervous System. The nervous system has three functions Chapter 37 Human Nervous System The nervous system has three functions 1) Receive sensory input from both external and internal stimuli 2) Perform integration. (Coordinating all of the various inputs of

More information

8.3 The Central Nervous System. SBI4U Ms. Ho-Lau

8.3 The Central Nervous System. SBI4U Ms. Ho-Lau 8.3 The Central Nervous System SBI4U Ms. Ho-Lau The Central Nervous System the structural and functional centre for the entire nervous system the site of neural integration and processing The Central

More information

3. A process that occurs in the human body is represented in the diagram below.

3. A process that occurs in the human body is represented in the diagram below. 1. Molecules in a certain medication attach to receptors on nerve cells. This prevents the normal chemical signal from binding to the receptor. One immediate result of taking this medication might be a

More information

Neurons, Synapses, and Signaling

Neurons, Synapses, and Signaling Chapter 48 Neurons, Synapses, and Signaling PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions

More information

Chapter 12 Nervous System Review Assignment

Chapter 12 Nervous System Review Assignment Name: Class: Date: Chapter 12 Nervous System Review Assignment Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which part of a neuron receives an impulse

More information

Lecture 13. The Nervous System. Lecture 13

Lecture 13. The Nervous System. Lecture 13 Lecture 13 The Nervous System Lecture 13 1. Introduction 2. Functions of the Nervous System 3. Neurons 4. CNS Brain and Spinal Cord 5. Peripheral Nervous System 6. Nervous System Health Concerns 1 The

More information

ANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 7 THE NERVOUS SYSTEM

ANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 7 THE NERVOUS SYSTEM ANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 7 THE NERVOUS SYSTEM Introduction The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental

More information

Chapter 12 Nervous System Written Assignment KEY

Chapter 12 Nervous System Written Assignment KEY Chapter 12 Nervous System Written Assignment KEY 1. Describe, in correct order, the events that occur during the transmission of a nerve impulse (action potential) as it travels from point X to point Y.

More information

Nervous System. Made of two parts. Central Peripheral

Nervous System. Made of two parts. Central Peripheral Nervous System Made of two parts Central Peripheral The Central Nervous System is made of the brain and the spinal cord. The Central Nervous System controls everything in the body. A system that controls

More information

THE NERVOUS SYSTEM Functions of the Nervous System nervous system stimulus response Neuron structure and function neurons nerve impulses dendrite

THE NERVOUS SYSTEM Functions of the Nervous System nervous system stimulus response Neuron structure and function neurons nerve impulses dendrite THE NERVOUS SYSTEM Functions of the Nervous System The nervous system is a network of communication used by body parts to maintain homeostasis and bodily functions. The nervous system gathers information

More information

Week 2 Psychology. The Brain and Behavior

Week 2 Psychology. The Brain and Behavior Week 2 Psychology The Brain and Behavior In this lesson, we will focus on the nervous system. We will learn about the Nervous System and its Command Center the Brain Characteristics and Divisions of the

More information

Central vs. Peripheral Nervous System

Central vs. Peripheral Nervous System Nervous System 2 C 1 2 : A N A L Y Z E T H E F U N C T I O N A L I N T E R R E L A T I O N S H I P S O F T H E D I V I S I O N S O F T H E N E R V O U S S Y S T E M Central vs. Peripheral Nervous System

More information

Nervous System. 2. Receives information from the environment from CNS to organs and glands. 1. Relays messages, processes info, analyzes data

Nervous System. 2. Receives information from the environment from CNS to organs and glands. 1. Relays messages, processes info, analyzes data Nervous System 1. Relays messages, processes info, analyzes data 2. Receives information from the environment from CNS to organs and glands 3. Transmits impulses from CNS to muscles and glands 4. Transmits

More information

Neurology study of the nervous system. nervous & endocrine systems work together to maintain homeostasis

Neurology study of the nervous system. nervous & endocrine systems work together to maintain homeostasis Nervous System Neurology study of the nervous system nervous & endocrine systems work together to maintain homeostasis Nervous System works very fast Uses electrical signals called nerve impulses Short-lived

More information

PHYSIOLOGICAL ADAPTATIONS FOR SURVIVAL

PHYSIOLOGICAL ADAPTATIONS FOR SURVIVAL PHYSIOLOGICAL ADAPTATIONS FOR SURVIVAL HOMEOSTASIS Homeostasis means staying similar or unchanging and refers to the constant internal environment or steady state of an organism. It also includes the processes

More information

Respiration Cellular Respiration Understand the relationship between glucose breakdown and ATP when you burn glucose with the help of oxygen, it

Respiration Cellular Respiration Understand the relationship between glucose breakdown and ATP when you burn glucose with the help of oxygen, it Respiration Cellular Respiration Understand the relationship between glucose breakdown and ATP when you burn glucose with the help of oxygen, it traps chemical energy into ATP Energy found in glucose stores

More information

Review on Nervous System, Senses and Musculoskeletal System

Review on Nervous System, Senses and Musculoskeletal System Review on Nervous System, Senses and Musculoskeletal System Looking for answers? Visit http://msjadah.weebly.com 1. The Nervous System a) What is the function of nervous system? The nervous system receives,

More information

Page 1. Neurons Transmit Signal via Action Potentials: neuron At rest, neurons maintain an electrical difference across

Page 1. Neurons Transmit Signal via Action Potentials: neuron At rest, neurons maintain an electrical difference across Chapter 33: The Nervous System and the Senses Neurons: Specialized excitable cells that allow for communication throughout the body via electrical impulses Neuron Anatomy / Function: 1) Dendrites: Receive

More information

Chapter 7: The Nervous System

Chapter 7: The Nervous System Name: Block: Chapter 7: The Nervous System Lesson 1: How the Nervous System Works What is the Role of the Nervous System? Your nervous system receives information about what is happening both inside and

More information

Functions of the Nervous System

Functions of the Nervous System The Nervous System Functions of the Nervous System 1. Control center for all body activities 2. Responds and adapts to changes that occur both inside and outside the body (Ex: pain, temperature, pregnancy)

More information

Meyers' A&P February 15, Unit 7. The Nervous System. I. Functions of the Nervous System. Monitors body's internal and external enviornments

Meyers' A&P February 15, Unit 7. The Nervous System. I. Functions of the Nervous System. Monitors body's internal and external enviornments Unit 7 The Nervous System I. Functions of the Nervous System Monitors body's internal and external enviornments Integrates sensory information Coordinates voluntary & involuntary responses of many other

More information

The neurvous system senses, interprets, and responds to changes in the environment. Two types of cells makes this possible:

The neurvous system senses, interprets, and responds to changes in the environment. Two types of cells makes this possible: NERVOUS SYSTEM The neurvous system senses, interprets, and responds to changes in the environment. Two types of cells makes this possible: the neuron and the supporting cells ("glial cells"). Neuron Neurons

More information

UNIT 3 - THE NERVOUS SYSTEM. - DIVISIONs - THE NEURON

UNIT 3 - THE NERVOUS SYSTEM. - DIVISIONs - THE NEURON UNIT 3 - THE NERVOUS SYSTEM - DIVISIONs - THE NEURON CHARACTERISTICS COMPLEXITY: nerve cells connecting allow you to do EVERYTHING you will ever do INTEGRATION: brain pulls all information you get together

More information

action potential afferent neuron Weblike; specifically, the weblike middle layer of the three meninges. arachnoid astrocytes autonomic nervous system

action potential afferent neuron Weblike; specifically, the weblike middle layer of the three meninges. arachnoid astrocytes autonomic nervous system action potential A large transient depolarization event, including polarity reversal, that is conducted along the membrane of a muscle cell or a nerve fiber. afferent neuron Nerve cell that carries impulses

More information

The Nervous and Endocrine Systems Worksheets

The Nervous and Endocrine Systems Worksheets The Nervous and Endocrine Systems Worksheets Douglas Wilkin, Ph.D. (DWilkin) Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this

More information

It is the organ responsible for making the response. There are two types of effectors, which develop two types of different responses:

It is the organ responsible for making the response. There are two types of effectors, which develop two types of different responses: I.E.S. PLAYAMAR DEPARTAMENTO DE BIOLOGÍA Y GEOLOGÍA UNIT 5 THE NERVOUS AND ENDOCRINE SYSTEM. The coordination systems People, as the rest of living beings, receive information and make responses through

More information

THE NERVOUS AND ENDOCRINE SYSTEMS

THE NERVOUS AND ENDOCRINE SYSTEMS THE NERVOUS AND ENDOCRINE SYSTEMS THE NERVOUS SYSTEM THE NERVOUS SYSTEM CONTROLS THE BODY S ACTIVITIES IT RECEIVES AND SENDS OUT INFORMATION ABOUT ACTIVITIES WITHIN THE BODY MONITORS AND RESPONDS TO CHANGES

More information

Biological Psychology

Biological Psychology Unit 3a Defini,ons Biological Psychology = a branch of psychology concerned with the links between biology and behavior. Some biological psychologists call themselves behavioral neuroscientists, neuropsychologists,

More information

Unit Six The Nervous System

Unit Six The Nervous System Unit Six The Nervous System I. Introduction A. Definition a coordinating system of the body, composed of highly specialized cells that conduct nerve impulses to a center so responses can be made. The nervous

More information

Functional Organization of the Central Nervous System

Functional Organization of the Central Nervous System Functional Organization of the Central Nervous System Hierarchical orgnization CNS consists of the brain and the spinal cord The brain analyzes and interprets the information Response messages are

More information

The Nervous System IN DEPTH

The Nervous System IN DEPTH The Nervous System IN DEPTH The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind. Note taking tips Make sure that you have written

More information

Study Guide Answer Key Nervous System

Study Guide Answer Key Nervous System Biology 12 Human Biology Textbook: BC Biology 12 Study Guide Answer Key Nervous System 1. Draw a neuron, label 3 parts and give the function of those parts. Dendrite: carry signals to the cell body Cell

More information

Test 3. Module 5 & 6

Test 3. Module 5 & 6 Test 3 Module 5 & 6 Questions from the GVLS website Define the terms: Muscle- Involuntary- Voluntary- Striated- Smooth- Cardiac- Sarcomere - Actin - Myosin - Myofibril - Muscle Contraction - A-band - I-band

More information

Bell Work. Materials Needed: writing utensil and A&P book. Quietly pick up a Lesson 6.5 worksheet from the back table and work on it independently.

Bell Work. Materials Needed: writing utensil and A&P book. Quietly pick up a Lesson 6.5 worksheet from the back table and work on it independently. Bell Work Materials Needed: writing utensil and A&P book Quietly pick up a Lesson 6.5 worksheet from the back table and work on it independently. The Nervous System ANATOMY & PHYSIOLOGY Overview Controls

More information

Nervous System - PNS and CNS. Bio 105

Nervous System - PNS and CNS. Bio 105 Nervous System - PNS and CNS Bio 105 Outline I. Central Nervous System vs Peripheral Nervous System II. Peripheral Nervous System A. Autonomic Nervous Systems B. Somatic Nervous Systems III. Autonomic

More information

Neural Basis of Motor Control. Chapter 4

Neural Basis of Motor Control. Chapter 4 Neural Basis of Motor Control Chapter 4 Neurological Perspective A basic understanding of the physiology underlying the control of voluntary movement establishes a more comprehensive appreciation and awareness

More information

THE NERVOUS SYSTEM (CHAPTER 36)

THE NERVOUS SYSTEM (CHAPTER 36) THE NERVOUS SYSTEM (CHAPTER 36) I) The Central Nervous System (DIVISION 1) A) A nerve impulse traveling in your body must first go to the brain (Control Center) for processing 1) Brain and spinal cord

More information

Control and Coordination

Control and Coordination CHAPTER 7 Control and Coordination Living organisms respond and react to various stimuli like heat, light, cold, touch, pressure etc. Plants and animals both respond to stimuli but in different manner.

More information

Gymnázium, Brno, Slovanské nám. 7, WORKBOOK - Biology WORKBOOK. Student:

Gymnázium, Brno, Slovanské nám. 7, WORKBOOK - Biology WORKBOOK.   Student: WORKBOOK http://agb.gymnaslo.cz Subject: Teacher: Student: Biology Iva Kubištová.. School year:../ This material was prepared with using http://biologygmh.com/ Topics: 1. 2. 3. 4. 5. Nervous system, Senses,

More information

3/15/17. Outline. Nervous System - PNS and CNS. Two Parts of the Nervous System

3/15/17. Outline. Nervous System - PNS and CNS. Two Parts of the Nervous System Nervous System - PNS and CNS Bio 105 Outline I. Central Nervous System vs Peripheral Nervous System II. Peripheral Nervous System A. Autonomic Nervous Systems B. Somatic Nervous Systems III. Autonomic

More information

Learning Modules - Medical Gross Anatomy Nervous System Overview - Page 1 of 14

Learning Modules - Medical Gross Anatomy Nervous System Overview - Page 1 of 14 Nervous System Overview - Page 1 of 14 Overview of the Nervous System Every minute of every day, your nervous system is sending and receiving countless messages about what is happening both inside and

More information

Q: A.1. Answer (b) neurolemma Q: A.2. Answer (d) Pons - consciousness Q: A.3. Answer (b) Contains both sensory and motor fibres Q: B.

Q: A.1. Answer (b) neurolemma Q: A.2. Answer (d) Pons - consciousness Q: A.3. Answer (b) Contains both sensory and motor fibres Q: B. NERVOUS SYSTEM Q: A.1 (b) neurolemma Q: A.2 (d) Pons - consciousness Q: A.3 (b) Contains both sensory and motor fibres Q: B.1 (a) Cerebrospinal fluid (b) Synapse (c) Cerebrum (d) Hypothalamus Q: B.2 (a)

More information