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

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

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

Transcription

1 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 Work together to regulate body activities The Nervous System Controls the muscular system Works with the endocrine system to maintain homeostasis Organization of Nervous Systems Two main divisions: The central nervous system (CNS) brain and spinal cord The peripheral (PNS) nerves that carry signals into and out of the CNS Organization of Nervous System Two types of cells Two main divisions: The central nervous system (CNS) brain and spinal cord The peripheral (PNS) nerves that carry signals into and out of the CNS Neurons cells specialized for carrying electrical signals from one part of the body to another Neuroglia Cells that support and nourish s Outnumber s 9 to 1 axon cell body dendrites Neuron

2 Myelin sheath Covering formed by a type of neuroglia called Schwann cells Cells wrap themselves around the axon several times Insulates axons Sensory receptor Effector cells Three types of s SENSORY INPUT Sensory MOTOR OUTPUT Motor Peripheral nervous system (PNS) INTEGRATION Inter Brain and spinal cord Central nervous system (CNS) Nerves Axons bundle up into nerves that extend from the CNS to various parts of the body. Signal direction Nucleus Structure of a motor Dendrites Cell body Axon Supporting cell Direction of electrical signal: Dendrite cell body axon Signal pathway terminals Myelin sheath Forms insulating material around an axon Helps increase the speed of the electrical signal The nerve impulse The nerve impulse When a is at rest, the inside of the axon is negatively charged compared to the outside. More positive ions outside than inside the membrane recording reference electrode electrode inside axon outside axon axonal membrane A rapid, short-lived reversal in the charge across the membrane Sodium channels in the membrane open letting Na into the axon Signal is propagated down the axon like an electrical current direction of signal open Na channel b. Stimulus causes the axon to reach its threshold; the axon potential increases from -65 to -40. The action potential has begun.

3 Axon Passing the nerve impulse to the next cell Action potential A synapse is the gap between two s The nerve impulse can t cross the gap The signal is transmitted by chemicals called neurotransmitters Action potential Electrical signal travels down the axon Action potential Stored in vesicles at the end of the axon terminal of sending s They can either excite or inhibit the postsynaptic cell More than 25 small molecules act as neurotransmitters Most widely studied Acetylcholine (ACh), norepinephrine (NE), dopamine, serotonin, and GABA Dendrite of receiving SYNAPSE Sending Action potential arrives. Vesicles terminal Receptor Ions Vesicle fuses with plasma membrane. is released into synaptic cleft. cleft Receiving Ion channels molecules binds to receptor. Ion channel opens and triggers or inhibits a new action potential. Ion channel closes. is broken down and released. Figure 27.5 Dendrites Integration Myelin sheath Receiving cell body A may receive input from hundreds of other s via thousands of synaptic terminals Axon terminals It integrates signals SEM Control of muscle contraction Motor s carry nerve impulse to a muscle fiber ACh is released, diffuses across the synapse and binds to receptors on muscle cell Muscle fiber contracts

4 How do recreational drugs work? Many drugs affect the levels of neurotransmitters. Mimic the action of a neurotransmitter Block its receptor Interfere with removal of a neurotransmitter from the synapse Cocaine Prevents the uptake of dopamine at the synapse Dopamine remains in the synapse longer and continues to stimulate the postsynaptic cell. The user experiences a rush sensation Methamphetamine Marijuana A synthetic drug made by adding a methyl group to amphetamine Its structure is similar to dopamine Stimulatory effect mimics cocaine anadamide Anadamide receptor THC binds to a receptor for the neurotransmitter anadamide feeling of peaceful contentment, mild euphoria Nicotine The Central Nervous System Nicotine acts as a stimulant by mimicking acetylcholine it binds to and activates ACh receptors The brain and spinal cord Protected by bone; wrapped in protective membranes called the meninges Spaces filled with cerebrospinal fluid Cushions the CNS Supplies nutrients, hormones

5 Spinal cord The human brain Conducts signals to and from the brain Gray matter contains cell bodies of s White matter contains myelinated axons that run together in bundles called tracts White matter Cerebrum largest portion of the brain Responsible for reasoning, learning and memory, language The cerebral cortex Spinal nerve Gray matter Cerebrum Is a highly folded layer on the surface of the cerebrum Gray matter contains over 1 billion cell bodies ry ya sor ry ma ma P ri P ri Taste The Cerebral Cortex Parietal lobe sen mo to r a re a Frontal lobe re a Cerebrum - divided into four lobes The right and left cerebral hemispheres interconnected by the corpus callosum Speech Smell Hearing Vision Temporal lobe Bridge of nerve tracts Indicates that the hemispheres work together Occipital lobe Figure The brain: Cerebellum Functions: Maintains posture and balance Coordinates body movement Helps us learn new motor skills (i.e. playing the piano or hitting a baseball) The brain stem Connects the brain to the spinal cord Regulates breathing, heartbeat and blood pressure Brain stem

6 The Peripheral Nervous System Contains the nerves Cranial nerves carry signals to and from the brain Spinal nerves carry signals to and from the spinal cord Two components: The somatic The autonomic Somatic (voluntary) PERIPHERAL NERVOUS SYSTEM Autonomic (involuntary) Parasympathetic division (rest and digest) Sympathetic division (fight or flight) Voluntary leg muscles Involuntary heart muscle LM Figure 27.9 Peripheral Alzheimer s disease The somatic (voluntary) Carries signals to and from skeletal muscles Mainly responds to external stimuli The autonomic (involuntary) Regulates the internal environment Controls Smooth and cardiac muscles Organs and glands Most common form of dementia Neurodegeneration Entire brain regions are demolished Destroys memory and thinking skills Metabolic function of the brain Alzheimer s disease PET allows for noninvasive tests of brain function using radioactive tracers that target specific molecules Here the FDG tracer is used to measure the metabolic activity. Note the decrease in metabolic function in patients with Alzheimer's Healthy Alzheimer's Possible causes Reduced synthesis of neurotransmitter acetylcholine Dangerous buildup of amyloid protein inflammation Breakdown of myelin in brain demyelination

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

Bio11 schedule. Chapter 13 and 14. The Nervous System. The Nervous System. Organization of Nervous Systems. Nerves. Nervous and Sensory Systems

Bio11 schedule. Chapter 13 and 14. The Nervous System. The Nervous System. Organization of Nervous Systems. Nerves. Nervous and Sensory Systems Bio11 schedule Lecture Nervous system and senses Lab Current events reports (10 pts) Urinalysis Lecture exam 2 Thursday Feb 24 Same format as before Study guide will be posted Your total points so far

More information

The Nervous System. Overall Function

The Nervous System. Overall Function The Nervous System The Nervous System Overall Function COMMUNICATION Works with the endocrine system in regulating body functioning, but the nervous system is specialized for SPEED Neurons A neuron is

More information

Chapter 17. Nervous System Nervous systems receive sensory input, interpret it, and send out appropriate commands. !

Chapter 17. Nervous System Nervous systems receive sensory input, interpret it, and send out appropriate commands. ! Chapter 17 Sensory receptor Sensory input Integration Nervous System Motor output Brain and spinal cord Effector cells Peripheral nervous system (PNS) Central nervous system (CNS) 28.1 Nervous systems

More information

The Nervous System & Nervous tissue. Dr. Ali Ebneshahidi

The Nervous System & Nervous tissue. Dr. Ali Ebneshahidi The Nervous System & Nervous tissue Dr. Ali Ebneshahidi Functions of the Nervous System 1. Nervous system and endocrine system are the chief control centers in maintaining body homeostasis. 2. Nervous

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

Nervous System Review

Nervous System Review Nervous System Review Name: Block: 1. Which processes are involved in the movement of molecule Y from point X to point Z? A. exocytosis and diffusion B. endocytosis and diffusion C. exocytosis and facilitated

More information

Primary Functions. Monitor changes. Integrate input. Initiate a response. External / internal. Process, interpret, make decisions, store information

Primary Functions. Monitor changes. Integrate input. Initiate a response. External / internal. Process, interpret, make decisions, store information NERVOUS SYSTEM Monitor changes External / internal Integrate input Primary Functions Process, interpret, make decisions, store information Initiate a response E.g., movement, hormone release, stimulate/inhibit

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

NERVOUS SYSTEM C H A P T E R 2 8

NERVOUS SYSTEM C H A P T E R 2 8 NERVOUS SYSTEM C H A P T E R 2 8 CAN AN INJURED SPINAL CORD BE FIXED? Injuries to the spinal cord disrupt communication between the central nervous system (brain and spinal cord) and the rest of the body

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

1. Processes nutrients and provides energy for the neuron to function; contains the cell's nucleus; also called the soma.

1. Processes nutrients and provides energy for the neuron to function; contains the cell's nucleus; also called the soma. 1. Base of brainstem; controls heartbeat and breathing 2. tissue destruction; a brain lesion is a naturally or experimentally caused destruction of brain tissue 3. A thick band of axons that connects 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

BIOLOGY 12 NERVOUS SYSTEM PRACTICE

BIOLOGY 12 NERVOUS SYSTEM PRACTICE 1 Name: BIOLOGY 12 NERVOUS SYSTEM PRACTICE Date: 1) Identify structures X, Y and Z and give one function of each. 2) Which processes are involved in the movement of molecule Y from point X to point Z?

More information

Bio11: The Nervous System. The human brain. fmri scans of the brain a tool for brain mapping. MRI image of the head. Neurons carry electrical signals

Bio11: The Nervous System. The human brain. fmri scans of the brain a tool for brain mapping. MRI image of the head. Neurons carry electrical signals Bio11: The Nervous System The human brain The brain processes and acts on information Home of intelligence Uses more energy than any other part of the body Mysteries of human brain 4:37 http://www.youtube.com/watch?v=glxu80ge7vg

More information

Chapter 3 Biological Foundations and Neuroscience

Chapter 3 Biological Foundations and Neuroscience Chapter 3 Biological Foundations and Neuroscience Copyright 2001 by McGraw-Hill Ryerson Limited Heredity! Chromosomes! Threadlike structures that come in 23 pairs, one member of each pair coming from each

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

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

Peripheral Nervous system messages via spinal and cranial nerves

Peripheral Nervous system messages via spinal and cranial nerves Biol 067: Section 13 - Nervous System A. Overview of the nervous system: 1. 2 parts of the Nervous System: Nervous system Central Nervous System (CNS) Peripheral Nervous System (PNS) 2. How CNS and PNS

More information

Nervous System Notes

Nervous System Notes Nervous System Notes The nervous system consists of a network of nerve cells or neurons. I. A nervous system is an important part of a cell s (or an organism s) ability to respond to the environment. A.

More information

Name: Period: Test Review: Chapter 2

Name: Period: Test Review: Chapter 2 Name: Period: Test Review: Chapter 2 1. The function of dendrites is to A) receive incoming signals from other neurons. B) release neurotransmitters into the spatial junctions between neurons. C) coordinate

More information

UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM 1) State the 3 functions of the nervous system. 1) 2) 3)

UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM 1) State the 3 functions of the nervous system. 1) 2) 3) UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM State the 3 functions of the nervous system. Briefly describe the general function(s) of each of the following neuron types: a) SENSORY NEURONS: b) INTERNEURONS: c)

More information

Module 5 : Anatomy The nervous system

Module 5 : Anatomy The nervous system Module 5 : Anatomy The nervous system In this module you will learn: The main parts of the nervous system The different sections of the brain and how it functions The structure and function of the spinal

More information

Chapter 7. The Nervous System: Structure and Control of Movement

Chapter 7. The Nervous System: Structure and Control of Movement Chapter 7 The Nervous System: Structure and Control of Movement Objectives Discuss the general organization of the nervous system Describe the structure & function of a nerve Draw and label the pathways

More information

Chapter 7. Objectives

Chapter 7. Objectives Chapter 7 The Nervous System: Structure and Control of Movement Objectives Discuss the general organization of the nervous system Describe the structure & function of a nerve Draw and label the pathways

More information

Neural and Hormonal Systems

Neural and Hormonal Systems PSYCHOLOGY (8th Edition, in Modules) David Myers PowerPoint Slides Worth Publishers, 2007 1 Neural and Hormonal Systems Module 4 2 Neural and Hormonal Systems Neural Communication Neurons How Neurons Communicate

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

Chapter 28 Nervous Systems

Chapter 28 Nervous Systems Chapter 28 Nervous Systems PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Copyright 2009 Pearson Education, Inc. Lecture by Edward J.

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

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

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

! BIOL 2401! Week 5. Nervous System. Nervous System

! BIOL 2401! Week 5. Nervous System. Nervous System Collin County Community College! BIOL 2401! Week 5 Nervous System 1 Nervous System The process of homeostasis makes sure that the activities that occur in the body are maintained within normal physiological

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

STOP. The Nervous System How you know when to. doing something stupid. Or Keep doing something pleasurable. The Neuron. Different Types of Neurons

STOP. The Nervous System How you know when to. doing something stupid. Or Keep doing something pleasurable. The Neuron. Different Types of Neurons The Nervous System How you know when to STOP doing something stupid. Or Keep doing something pleasurable Complexity of the Brain The brain contains approximately 100 billion nerve cells, or neurons, and

More information

6.5 Nerves, Hormones and Homeostasis

6.5 Nerves, Hormones and Homeostasis 6.5 Nerves, Hormones and Homeostasis IB Biology SL Part 1 - Nerves Outcomes Part 1 6.5.1State that the nervous system consists of the central nervous system (CNS) and peripheral nerves, and is composed

More information

UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM 1a) State the 3 functions of the nervous system. 1: sensory 2: integration 3: motor output

UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM 1a) State the 3 functions of the nervous system. 1: sensory 2: integration 3: motor output UNIT 5 REVIEW GUIDE - NERVOUS SYSTEM 1a) State the 3 functions of the nervous system. 1: sensory 2: integration 3: motor output 1b) Complete a flow chart showing the relationships within the nervous system

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

2401 : Anatomy/Physiology

2401 : Anatomy/Physiology Dr. Chris Doumen Week 5 2401 : Anatomy/Physiology Introduction Neural Tissue TextBook Readings Pages 388 through 397. Make use of the figures in your textbook ; a picture is worth a thousand words! Work

More information

Nervous system function Central and peripheral nervous system. Myelinated neurons Nerve signal transmission Nerve Synapse

Nervous system function Central and peripheral nervous system. Myelinated neurons Nerve signal transmission Nerve Synapse Outline Nervous System - Neurons Biol 105 Lecture Packet 9 Chapter 7 I. II. III. IV. V. VI. Nervous system function Central and peripheral nervous system Nervous system cells Myelinated neurons Nerve signal

More information

ACTIVITY2.15 Text:Campbell,v.8,chapter48 DATE HOUR NERVOUS SYSTEMS NEURON

ACTIVITY2.15 Text:Campbell,v.8,chapter48 DATE HOUR NERVOUS SYSTEMS NEURON AP BIOLOGY ACTIVITY2.15 Text:Campbell,v.8,chapter48 NAME DATE HOUR NERVOUS SYSTEMS NEURON SIMPLE REFLEX RESTING POTENTIAL ACTION POTENTIAL ACTION POTENTIAL GRAPH TRANSMISSION ACROSS A SYNAPSE QUESTIONS:

More information

II. Nervous System (NS) Organization: can be organized by location/ structure or by function A. Structural Organization 1. Central N.S.

II. Nervous System (NS) Organization: can be organized by location/ structure or by function A. Structural Organization 1. Central N.S. Nervous System I. Nervous system Functions A. Detect Changes in the environment (stimuli) B. Interpret/evaluate those stimuli C. Initiate responses (trigger muscle contractions or glandular response) II.

More information

Chapter 14: Nervous System Guided Notes (A-day)

Chapter 14: Nervous System Guided Notes (A-day) Chapter 14: Nervous System Guided Notes (A-day) Nervous System Overview Major Function: Control the body's and. Divided into the Nervous System (CNS=Brain and Spinal Cord) and the Nervous System (PNS=Cranial

More information

[CHAPTER 12: THE NERVOUS SYSTEM] [ANSWER KEY]

[CHAPTER 12: THE NERVOUS SYSTEM] [ANSWER KEY] WORDBANK: Cholinesterase Dopamine Axon Choroid layer Cochlea Incus Action Potential Cataract Cornea Astigmatism Dendrite Malleus Alzheimer s Disease Central Excitatory Response Fovea Centralis Acetylcholine

More information

1. Name the two major divisions of the nervous system and list the organs within each. Central Nervous System Peripheral Nervous System

1. Name the two major divisions of the nervous system and list the organs within each. Central Nervous System Peripheral Nervous System CHAPTER 10: NERVOUS SYSTEM I OBJECTIVES 1. Name the two major divisions of the nervous system and list the organs within each. Central Nervous System Peripheral Nervous System Brain Spinal Cord Cranial

More information

Essentials of Human Anatomy & Physiology. Seventh Edition. The Nervous System. Copyright 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Essentials of Human Anatomy & Physiology. Seventh Edition. The Nervous System. Copyright 2003 Pearson Education, Inc. publishing as Benjamin Cummings Essentials of Human Anatomy & Physiology Seventh Edition The Nervous System Copyright 2003 Pearson Education, Inc. publishing as Benjamin Cummings Functions of the Nervous System 1. Sensory input gathering

More information

Learning Intention. Name and describe the components of a neuron

Learning Intention. Name and describe the components of a neuron c) Neural Pathways Learning Intention Name and describe the components of a neuron Cells of the Nervous System The nervous system consists of a complex network of nerve cells called neurons which receive

More information

Nervous System- Chapters 7, 8

Nervous System- Chapters 7, 8 Nervous System- Chapters 7, 8 1 Surgical Papyrus Egyptian hieroglyphics. 17 th Century B.C. Oldest known surgical treatise. 48 case histories are outlined. 2 Organization of the Nervous System Consists

More information

NEURAL TISSUE (NEUROPHYSIOLOGY) PART I (A): NEURONS & NEUROGLIA

NEURAL TISSUE (NEUROPHYSIOLOGY) PART I (A): NEURONS & NEUROGLIA PART I (A): NEURONS & NEUROGLIA Neural Tissue Contains 2 kinds of cells: neurons: cells that send and receive signals neuroglia (glial cells): cells that support and protect neurons Neuron Types Sensory

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

Okami Study Guide: Chapter 2 1

Okami Study Guide: Chapter 2 1 Okami Study Guide: Chapter 2 1 Chapter Test 1. A cell that receives information and transmits it to other cells via an electrochemical process is called a(n) a. neuron b. hormone c. glia d. endorphin Answer:

More information

Chapter 7 Nervous System

Chapter 7 Nervous System Chapter 7 Nervous System Two message centers: Functions of these systems: 1. * 2. * Overview of the Nervous System Parts: General Functions: Functions Sensory input: Sensation via nerves Integration: interpretation

More information

1. 01/20/15 Ch 8: Muscular System /09/15 Ch 9: Nervous System 16

1. 01/20/15 Ch 8: Muscular System /09/15 Ch 9: Nervous System 16 Table of Contents # Date Title Page # 1. 01/20/15 Ch 8: Muscular System 1 2. 02/09/15 Ch 9: Nervous System 16 i 1 Anatomy and Physiology Sem 2 Ch 9 Nervous System.notebook 02/09/15 Ch. 9 Nervous System

More information

BIOH111. o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system

BIOH111. o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system BIOH111 o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system Endeavour College of Natural Health endeavour.edu.au 1 TEXTBOOK AND REQUIRED/RECOMMENDED

More information

Nervous System CHAPTER 9. Copyright 2016 by Elsevier, Inc.

Nervous System CHAPTER 9. Copyright 2016 by Elsevier, Inc. Nervous System CHAPTER 9 Copyright 2016 by Elsevier, Inc. Neurons and Supporting Cells Copyright 2016 by Elsevier, Inc. 2 Communication and Control Systems nervous system endocrine system uses chemicals

More information

NOTES CHAPTER 9 (Brief) The Nervous System LECTURE NOTES

NOTES CHAPTER 9 (Brief) The Nervous System LECTURE NOTES NOTES CHAPTER 9 (Brief) The Nervous System LECTURE NOTES I. Divisions of the Nervous System two major divisions A. Central Nervous System (CNS) 1. brain 2. spinal cord B. Peripheral Nervous System (PNS)

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

BIOLOGY 2050 LECTURE NOTES ANATOMY & PHYSIOLOGY I (A. IMHOLTZ) FUNDAMENTALS OF THE NERVOUS SYSTEM AND NERVOUS TISSUE P1 OF 5

BIOLOGY 2050 LECTURE NOTES ANATOMY & PHYSIOLOGY I (A. IMHOLTZ) FUNDAMENTALS OF THE NERVOUS SYSTEM AND NERVOUS TISSUE P1 OF 5 P1 OF 5 The nervous system controls/coordinates the activities of cells, tissues, & organs. The endocrine system also plays a role in control/coordination. The nervous system is more dominant. Its mechanisms

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

Nervous System Organization

Nervous System Organization The Nervous System Chapter 44 All animals must be able to respond to environmental stimuli -Sensory receptors = Detect stimulus -Motor effectors = Respond to it -The nervous system links the two -Consists

More information

Chapter 48-49: The Nervous System & Neurons

Chapter 48-49: The Nervous System & Neurons Invertebrates Chapter 48-49: The Nervous System & Neurons Radial Symmetry - Nerve net Cnideria Bilateral Symmetry double, ventral, solid nerve cord brain (cephalization) Vertebrates Dorsal, single, hollow,

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

PSYCH 260 Exam 2. March 2, Answer the questions using the Scantron form. Name:

PSYCH 260 Exam 2. March 2, Answer the questions using the Scantron form. Name: PSYCH 260 Exam 2 March 2, 2017 Answer the questions using the Scantron form. Name: 1 1 Main Please put in their proper order the steps that lead to synaptic communication between neurons. Begin with the

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

Outline. Animals: Nervous system. Neuron and connection of neurons. Key Concepts:

Outline. Animals: Nervous system. Neuron and connection of neurons. Key Concepts: Animals: Nervous system Neuron and connection of neurons Outline 1. Key concepts 2. An Overview and Evolution 3. Human Nervous System 4. The Neurons 5. The Electrical Signals 6. Communication between Neurons

More information

BIOLOGICAL PROCESSES

BIOLOGICAL PROCESSES BIOLOGICAL PROCESSES CHAPTER 3 1 LEARNING GOALS Discuss how the nervous system communicates internally. Describe the structure and function of neurons Describe how the neuron transmits information Describe

More information

Concept 48.1 Neuron organization and structure reflect function in information transfer

Concept 48.1 Neuron organization and structure reflect function in information transfer Name Chapter 48: Neurons, Synapses, and Signaling Period Chapter 48: Neurons, Synapses, and Signaling Concept 48.1 Neuron organization and structure reflect function in information transfer 1. What is

More information

Tips. Use the Study Guide (SG) to follow the lectures. Reading the SG before class will be helpful Use the textbook to supplement lectures/sg

Tips. Use the Study Guide (SG) to follow the lectures. Reading the SG before class will be helpful Use the textbook to supplement lectures/sg Tips Use the Study Guide (SG) to follow the lectures Lectures will be posted after class Reading the SG before class will be helpful Use the textbook to supplement lectures/sg The Nervous System N E U

More information

Warm-up. Warm-up. Warm-up. Chapter 48. Why do animals need a nervous system? 3/9/2012. Nervous System

Warm-up. Warm-up. Warm-up. Chapter 48. Why do animals need a nervous system? 3/9/2012. Nervous System Warm-up Objective: Explain how membrane potentials arise from differences in ion concentrations between cells' content and the extracellular fluid. Warm-up: Cells from this structure migrate to other parts

More information

Nervous Systems: Diversity & Functional Organization

Nervous Systems: Diversity & Functional Organization Nervous Systems: Diversity & Functional Organization Diversity of Neural Signaling The diversity of neuron structure and function allows neurons to play many roles. 3 basic function of all neurons: Receive

More information

10.1: Introduction. Cell types in neural tissue: Neurons Neuroglial cells (also known as neuroglia, glia, and glial cells) Dendrites.

10.1: Introduction. Cell types in neural tissue: Neurons Neuroglial cells (also known as neuroglia, glia, and glial cells) Dendrites. 10.1: Introduction Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cell types in neural tissue: Neurons Neuroglial cells (also known as neuroglia, glia, and glial

More information

THE NERVOUS SYSTEM. Homeostasis Strand

THE NERVOUS SYSTEM. Homeostasis Strand THE NERVOUS SYSTEM Homeostasis Strand Introduction In general, a nervous system has three overlapping functions : 1. Sensory input conduction of signals from sensory receptors to integration centres 2.

More information

BIO 115 Anatomy & Physiology II Practice Assignment 4: The Nervous System & The Senses This is not a required assignment but it is recommended.

BIO 115 Anatomy & Physiology II Practice Assignment 4: The Nervous System & The Senses This is not a required assignment but it is recommended. BIO 115 Anatomy & Physiology II Practice Assignment 4: The Nervous System & The Senses This is not a required assignment but it is recommended. 1. This figure depicts a typical neuron. What structures

More information

Portions from Chapter 6 CHAPTER 7. The Nervous System: Neurons and Synapses. Chapter 7 Outline. and Supporting Cells

Portions from Chapter 6 CHAPTER 7. The Nervous System: Neurons and Synapses. Chapter 7 Outline. and Supporting Cells CHAPTER 7 The Nervous System: Neurons and Synapses Chapter 7 Outline Neurons and Supporting Cells Activity in Axons The Synapse Acetylcholine as a Neurotransmitter Monoamines as Neurotransmitters Other

More information

BI 232: Human Anatomy & Physiology

BI 232: Human Anatomy & Physiology BI 232: Human Anatomy & Physiology Roster Business Course Introduction and Syllabus Notecard Name E-mail Why you are taking the course Something interesting you did over break Lecture Tips Use the Study

More information

You can follow the path of the neural signal. The sensory neurons detect a stimulus in your finger and send that information to the CNS.

You can follow the path of the neural signal. The sensory neurons detect a stimulus in your finger and send that information to the CNS. 1 Nervous system maintains coordination through the use of electrical and chemical processes. There are three aspects: sensory, motor, and integrative, which we will discuss throughout the system. The

More information

Neural Tissue. Chapter 12 Part B

Neural Tissue. Chapter 12 Part B Neural Tissue Chapter 12 Part B CNS Tumors - Neurons stop dividing at age 4 but glial cells retain the capacity to divide. - Primary CNS tumors in adults- division of abnormal neuroglia rather than from

More information

Fundamentals of the Nervous System and Nervous Tissue. Nervous System. Basic Divisions of the Nervous System C H A P T E R 12.

Fundamentals of the Nervous System and Nervous Tissue. Nervous System. Basic Divisions of the Nervous System C H A P T E R 12. C H A P T E R 12 Fundamentals of the Nervous System and Nervous Tissue Nervous System Sensory input Integration Motor output Figure 12.1 Basic Divisions of the Nervous System Brain CNS Spinal cord Nerves

More information

By Mr. Danilo Villar Rogayan Jr.

By Mr. Danilo Villar Rogayan Jr. The Nervous System By Mr. Danilo Villar Rogayan Jr. Instructor I, Department of Natural Sciences College of Agriculture & Veterinary Medicine RMTU San Marcelino Introduction Highly complex system of two

More information

Neurons: Structure and communication

Neurons: Structure and communication Neurons: Structure and communication http://faculty.washington.edu/chudler/gall1.html Common Components of a Neuron Dendrites Input, receives neurotransmitters Soma Processing, decision Axon Transmits

More information

Teacher Key. Big Idea Different types of neurons compose the nervous tissue that forms the communication system within the body.

Teacher Key. Big Idea Different types of neurons compose the nervous tissue that forms the communication system within the body. Big Idea Different types of neurons compose the nervous tissue that forms the communication system within the body. Introduction to Neurons An individual s survival and reproductive success depends upon

More information

Biology 105 Midterm Exam 3 Review Sheet

Biology 105 Midterm Exam 3 Review Sheet Biology 105 Midterm Exam 3 Review Sheet The third midterm exam will cover the following lecture material (lectures 8, 9, 10, 11, 12, and 13): Skeletal System (from chapter 5 in the textbook), Nervous System

More information

Nerve Cell Flashcards

Nerve Cell Flashcards 1. What does the word innervates mean? Refers to a nerve supplying a muscle or organ. For example, The phrenic nerve innervates the diaphragm muscle. 2. 3 parts of the Nervous System 1. Central Nervous

More information

Module H NERVOUS SYSTEM

Module H NERVOUS SYSTEM Module H NERVOUS SYSTEM Topic from General functions of the nervous system Organization of the nervous system from both anatomical & functional perspectives Gross & microscopic anatomy of nervous tissue

More information

Chapter 9 Nervous System

Chapter 9 Nervous System Chapter 9 Nervous System Introduction: A. The nervous system is composed of neurons and neuroglia. 1. Neurons transmit nerve impulses to other neurons. 2. Nerves are made up of bundles of nerve fibers

More information

Chapter 12 The Nervous System INTRODUCTION TO THE NERVOUS SYSTEM. Central Nervous System (CNS): STRUCTURE BRAIN SPINAL CORD NERVES

Chapter 12 The Nervous System INTRODUCTION TO THE NERVOUS SYSTEM. Central Nervous System (CNS): STRUCTURE BRAIN SPINAL CORD NERVES Chapter 12 The Nervous System PowerPoint by John McGill Supplemental Notes by Beth Wyatt INTRODUCTION TO THE NERVOUS SYSTEM STRUCTURE BRAIN SPINAL CORD NERVES Central Nervous System (CNS): Brain Spinal

More information

WHAT ARE the COMPONENTS OF THE NERVOUS SYSTEM?

WHAT ARE the COMPONENTS OF THE NERVOUS SYSTEM? The Nervous System WHAT ARE the COMPONENTS OF THE NERVOUS SYSTEM? The nervous system is made of: the brain & the spinal cord the nerves the senses There are lots of proteins and chemicals in your body

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

The 7 th lecture. Anatomy and Physiology For the. 1 st Class. By Dr. Ala a Hassan Mirza

The 7 th lecture. Anatomy and Physiology For the. 1 st Class. By Dr. Ala a Hassan Mirza The 7 th lecture In Anatomy and Physiology For the 1 st Class By Dr. Ala a Hassan Mirza Nervous System (part I) The Nerve Tissue and the Nervous System The Tissues of the Body There are 4 types of tissues

More information

1. NERVOUS SYSTEM FUNCTIONS OF THE NERVOUS SYSTEM. FUNCTION The major function of the nervous system can be summarized as follows (Figure 1-1).

1. NERVOUS SYSTEM FUNCTIONS OF THE NERVOUS SYSTEM. FUNCTION The major function of the nervous system can be summarized as follows (Figure 1-1). 1. NERVOUS SYSTEM FUNCTION The major function of the nervous system can be summarized as follows (Figure 1-1). Sensory input. Multiple signals from both, internal and external environment are detected

More information

General Psychology Biology & Behavior: The Brain

General Psychology Biology & Behavior: The Brain General Psychology Biology & Behavior: The Brain These are general notes designed to assist students who are regularly attending class and reading assigned material: they are supplemental rather than exhaustive

More information

Version A. AP* Biology: Nervous System. Questions 1 and 2. Name: Period

Version A. AP* Biology: Nervous System. Questions 1 and 2. Name: Period Name: Period Version A AP* Biology: Nervous System Directions: Each of the questions or incomplete statements below is followed by four suggested answers or completions. Select the one that is best in

More information

Nervous System. Electrical Signals.III Signal Transmission at Synapses Neurotransmitters.V Neural Circuits.VI

Nervous System. Electrical Signals.III Signal Transmission at Synapses Neurotransmitters.V Neural Circuits.VI Nervous System Overview.I Histology.II Electrical Signals.III Signal Transmission at Synapses Neurotransmitters.V Neural Circuits.VI Repairs.VII Pathology.VIII.IV 1 Controls and integrates all body activities

More information