Blood & Nervous Tissue. Blood. Nervous Tissue 10/13/2008. BY: Jeremiah Peters, Brett Maggard, Miranda Asher, and Benjamin Oakes

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Blood & Nervous Tissue. Blood. Nervous Tissue 10/13/2008. BY: Jeremiah Peters, Brett Maggard, Miranda Asher, and Benjamin Oakes"

Transcription

1 Blood & Nervous Tissue BY: Jeremiah Peters, Brett Maggard, Miranda Asher, and Benjamin Oakes Blood Fluid within blood vessels Doesn t connect or give mechanical support Transports Nutrients, wastes, respiratory gasses Platelets are small blood cells Nervous Tissue Main component of the nervous system Brain Spinal cord Nerves 1

2 Continued.. Regulates body functions Neurons functional units of nervous system Stimuli An activation of sensory receptors Sensory receptors specialize to respond to changes in their environment Supporting cell non-conducting cells that support, insulate, and protect the delicate neurons. The 2 Major Parts of the Nervous System Central nervous system (CNS) Peripheral nervous system (PNS) Central Nervous System The Central Nervous System (CNS) is made up of the brain and spinal cord 2

3 Peripheral Nervous System The Peripheral Nervous System (PNS) is the nerves that communicate motor system and sensory signal between the central nervous system and the rest of the body The nerves in your body that tell your brain things about your environment. The 3 Types of Neurons There are 3 types of Neurons: Sensory, Motor, and Interneurons. Sensory Neurons A Neuron that receives the signal from your senses and they send the signal in the form of a chemical that the brain can interpret. 3

4 The Interneurons act as a bridge between sensory neurons and motor neurons. Interneurons The Motor Neurons stimulate effectors in motor cells. Causes movement Motor Neuron The Structure of a Neuron This is a picture of a Neuron cell (only a little prettier). This neuron shows what all Neurons have Dendrites, Cell Body, Axon Hillock, Terminal Branches, and a Axon. 4

5 The Dendrites of the Neuron The Dendrites of a neuron connect with the Synaptic Terminal of other Neurons. The Dendrites receive the signals first before it s passed on to the rest of the Neuron. The Neuron Cell Body The Neuron Cell is about the same as a regular blood cell. The only difference is that it s relatively bigger than normal. The Axon Hillock of a Neuron The Axon Hillock connects the Axon and Cell Body together ( the Axon Hillock is in red). 5

6 The Axon of the Neuron The Axon is the main place where the signals are transmitted to the Synaptic Terminals. The Schwann Cells The Schwann Cells are the support for the Neurons in the PNS. In the CNS they're called Oligodendrocytes. Both of them produce Myelin Sheath. The Myelin Sheath of a Neuron The Myelin Sheath insulates the Axons in the vertebrate nervous system. The Sheath is produced by the Schwann's and Oligodendrocytes. 6

7 Synaptic Terminal of a Neuron The Synaptic Terminals are what connects to the Dendrites of the next Neuron. They send the signal to the next Neuron. The Synaptic Cleft Of a Neuron The Synaptic Cleft is the gap between the Presynaptic Cell (the transmitting cell) and the Postsynaptic Cell (the receiving cell). Because the Neurons don t actually connect there is a gap between them called the Synaptic Cleft. The Neurons are not as connected as you might think. The Neurotransmitters of a Neuron The Neurotransmitters are in the Neuron s Vesicles. The Vesicles travel through the cell carrying the transmitters. The transmitters are released in the Terminal Branches. They then travel across the Synaptic Cleft to open Ion channels in the next Neurons Dendrites. That way the Sodium Ions outside the Neurons Can get in and start the Neural Signaling. 7

8 The process of Neural Signaling The signaling process involves multiple action potentials along the Axon. One action potential involves four steps: Resting State, Depolarizing Phase, Repolarizing Phase, And Undershoot. All this happens in what s called Nodes of Ranvier (the gaps between the Myelin Sheath). The resting state of Neurons is when the Potassium and Sodium channels are closed. Outside is positively charged and inside is negatively charged. Resting State Depolarization Phase Occurs when the Neurotransmitters open up the Sodium Ion channels. This allows the Sodium Ions to travels into the Neuron through it s channels causing a positive charge inside the Neuron. 8

9 Repolarization Phase The Potassium Ion channels open up allowing the Potassium Ions to leave the Neuron, because the Sodium Ion channels are now closed. Because the Potassium left now the Neuron is negatively charged inside. Undershoot The Potassium Ions keep leaving the Neuron, because the Potassium Ion channels take longer to close. Therefore too many Potassium Ions left the Neuron so the Neuron has become unbalanced. After a short time it returns to the Resting State. Action Potential Chart On Board/Handout 9

10 References non hing2.html 8/020808a.htm %20Pages/Classification%20of%20neurons.html DMedia/PR_neuron.jpg ba8c407.jpg 007/11/universe-large-and-small.html rlab/cooper.htm ogy_of_somatic_sensation/images/sensory_neuron1.jpg aculty-research/facultyfocus/2003/petershrager.cfm hing2/teaching2.html ab/images/motorunit.jpg n_potential.jpg Campbell, Neil A. Biology 5th ed. Chapter ages/26080.gif 10

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

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

Branches of the Nervous System

Branches of the Nervous System The Nervous System Branches of the Nervous System There are 2 main branches of the nervous system Central Nervous System Brain Spinal Cord Peripheral Nervous System All nerves leading to rest of body Anatomy

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

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

THE NERVOUS SYSTEM. Neurons & Impulses

THE NERVOUS SYSTEM. Neurons & Impulses THE NERVOUS SYSTEM Neurons & Impulses Organization of the Nervous System: Two Major Portions: The central nervous system (CNS) and the peripheral nervous system (PNS). CNS = Brain/Spinal Cord PNS = Nerves-provide

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

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

Endocrine System Nervous System

Endocrine System Nervous System Cells Endocrine System Nervous System Tissues Controls Organs Nervous System vs Endocrine System Electrical signals (graded potentials and action potentials) and chemical signals (neurotransmitters) Fast

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

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

Functions of Nervous System Neuron Structure

Functions of Nervous System Neuron Structure Chapter 10 Nervous System I Divisions of the Nervous System Cell Types of Neural Tissue neurons neuroglial cells Central Nervous System brain spinal cord Peripheral Nervous System nerves cranial nerves

More information

NEURONS Chapter Neurons: specialized cells of the nervous system 2. Nerves: bundles of neuron axons 3. Nervous systems

NEURONS Chapter Neurons: specialized cells of the nervous system 2. Nerves: bundles of neuron axons 3. Nervous systems NEURONS Chapter 12 Figure 12.1 Neuronal and hormonal signaling both convey information over long distances 1. Nervous system A. nervous tissue B. conducts electrical impulses C. rapid communication 2.

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

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

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

Introduction to Neurobiology

Introduction to Neurobiology Biology 240 General Zoology Introduction to Neurobiology Nervous System functions: communication of information via nerve signals integration and processing of information control of physiological and

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 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

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

Nervous tissue, charachteristics, neurons, glial cells

Nervous tissue, charachteristics, neurons, glial cells Nervous tissue, charachteristics, neurons, glial cells Functional Organization of Nervous Tissue The Nervous System Components Brain, spinal cord, nerves, sensory receptors Responsible for Sensory perceptions,

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

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

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

Overview of Neurons. Psychology 470. Introduction to Chemical Additions. Neurons2. Axons and Related Structures. Structures

Overview of Neurons. Psychology 470. Introduction to Chemical Additions. Neurons2. Axons and Related Structures. Structures Soma Collateral Overview of Neurons Psychology 470 Axon Hillock Teleodendria Introduction to Chemical Additions Steven E. Meier, Ph.D. Node of Ranvier Listen to the audio lecture while viewing these slides

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

Nervous System. Master controlling and communicating system of the body. Secrete chemicals called neurotransmitters

Nervous System. Master controlling and communicating system of the body. Secrete chemicals called neurotransmitters Nervous System Master controlling and communicating system of the body Interacts with the endocrine system to control and coordinate the body s responses to changes in its environment, as well as growth,

More information

Nervous System (Part A-1) Module 8 -Chapter 14

Nervous System (Part A-1) Module 8 -Chapter 14 Nervous System (Part A-1) Module 8 -Chapter 14 Overview Susie Turner, M.D. 1/9/13 Cellular structure of the nervous system Neurons Neuroglia Nervous System Divisions Central nervous system Peripheral nervous

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

Neural Basis of Motor Control

Neural Basis of Motor Control Neural Basis of Motor Control Central Nervous System Skeletal muscles are controlled by the CNS which consists of the brain and spinal cord. Determines which muscles will contract When How fast To what

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

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

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 7 Nerve Cells and Electrical Signaling

Chapter 7 Nerve Cells and Electrical Signaling Chapter 7 Nerve Cells and Electrical Signaling 7.1. Overview of the Nervous System (Figure 7.1) 7.2. Cells of the Nervous System o Neurons are excitable cells which can generate action potentials o 90%

More information

The Nervous System -The master controlling and communicating system of the body

The Nervous System -The master controlling and communicating system of the body The Nervous System -The master controlling and communicating system of the body Functions: -Sensory input -Integration -Motor output Organization of the Nervous System Central nervous system (CNS) -Brain

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

The Brain & Homeostasis. The Brain & Technology. CAT, PET, and MRI Scans

The Brain & Homeostasis. The Brain & Technology. CAT, PET, and MRI Scans The Brain & Homeostasis Today, scientists have a lot of information about what happens in the different parts of the brain; however they are still trying to understand how the brain functions. We know

More information

The Nervous System. Nervous System Functions 1. gather sensory input 2. integration- process and interpret sensory input 3. cause motor output

The Nervous System. Nervous System Functions 1. gather sensory input 2. integration- process and interpret sensory input 3. cause motor output The Nervous System Nervous System Functions 1. gather sensory input 2. integration- process and interpret sensory input 3. cause motor output The Nervous System 2 Parts of the Nervous System 1. central

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

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

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

Lecture 3 (Oct 5 th ): NEURONS AND NERVE IMPULSES Lecture Outline

Lecture 3 (Oct 5 th ): NEURONS AND NERVE IMPULSES Lecture Outline Lecture 3 (Oct 5 th ): NEURONS AND NERVE IMPULSES Lecture Outline 1) CNS vs. PNS 2) Structure of Neurons parts of a neuron: soma, dendrites, axons 3) Glial Cells 4) Mitosis and Regeneration in Neurons

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

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

The Nervous System : communication

The Nervous System : communication The Nervous System : communication A. Neurons = masses of nerve cells that transmit information 1. Cell Body - contains the nucleus and two extensions 2. Dendrites shorter, more numerous, receive information

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

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

Chapter 11: Fundamentals of the Nervous System and Nervous Tissue

Chapter 11: Fundamentals of the Nervous System and Nervous Tissue Chapter 11: Fundamentals of the Nervous System and Nervous Tissue Objectives: 1. List the basic functions of the nervous system. 2. Explain the structural and functional divisions of the nervous system.

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 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

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

LESSON 3.3 WORKBOOK. Why does applying pressure relieve pain? Workbook. Postsynaptic potentials

LESSON 3.3 WORKBOOK. Why does applying pressure relieve pain? Workbook. Postsynaptic potentials Depolarize to decrease the resting membrane potential. Decreasing membrane potential means that the membrane potential is becoming more positive. Excitatory postsynaptic potentials (EPSP) graded postsynaptic

More information

Human Anatomy and Physiology - Problem Drill 11: Neural Tissue & The Nervous System

Human Anatomy and Physiology - Problem Drill 11: Neural Tissue & The Nervous System Human Anatomy and Physiology - Problem Drill 11: Neural Tissue & The Nervous System Question No. 1 of 10 The human body contains different types of tissue. The tissue is formed into organs and organ systems.

More information

1/20/ : Overview of the Nervous System. Divisions of the Nervous System. Divisions of the Nervous System

1/20/ : Overview of the Nervous System. Divisions of the Nervous System. Divisions of the Nervous System 10.1: Overview of the Nervous System Chapter 10 Lecture Outline See separate PowerPoint slides for all figures and tables preinserted into PowerPoint without notes. Copyright McGraw-Hill Education. Permission

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

A. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system:

A. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system: BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.

More information

Anatomy Review Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.

Anatomy Review Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc. Anatomy Review Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction The structure of neurons reflects their function.

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

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

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

The Nervous System : communication

The Nervous System : communication The Nervous System : communication A. Neurons = masses of nerve cells that transmit information 1. Cell Body - contains the nucleus and two extensions 2. Dendrites shorter, more numerous, receive information

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

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

Chapter 44 Neurons and Nervous Systems

Chapter 44 Neurons and Nervous Systems Nervous System Cells Neuron a cell Chapter 44 Neurons and Nervous Systems signal direction dendrites cell body Structure fits function many entry points for signal one path out transmits signal signal

More information

Chapter 8 Nervous System

Chapter 8 Nervous System Chapter 8 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

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

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

! 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

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

Chapter 45 Neurons and Nervous Systems

Chapter 45 Neurons and Nervous Systems Nervous System Cells Neuron a cell Chapter 45 Neurons and Nervous Systems signal direction dendrites cell body Structure fits function many entry points for signal one path out axon signal direction transmits

More information

THE NERVOUS SYSTEM AS A TARGET ORGAN

THE NERVOUS SYSTEM AS A TARGET ORGAN THE NERVOUS SYSTEM AS A TARGET ORGAN Summary A target organ is an organ or organs of the body which adversely responds to systemic exposure of a chemical. The function of the nervous system is to communicate

More information

NERVOUS SYSTEM. Chapter 48-49

NERVOUS SYSTEM. Chapter 48-49 NERVOUS SYSTEM Chapter 48-49 Nervous System Function: coordinates and controls bodily functions with nerves and electrical impulses The system is composed of different types of nerve cells called neurons

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

Anatomy and Physiology 1 Chapters 12 and 13 self quiz Pro, Dima Darwish,MD.

Anatomy and Physiology 1 Chapters 12 and 13 self quiz Pro, Dima Darwish,MD. Anatomy and Physiology 1 Chapters 12 and 13 self quiz Pro, Dima Darwish,MD. 1) Which of the following is a function of the nervous system? A) sense the internal and external environments B) integrate sensory

More information

Functions of the Nervous System

Functions of the Nervous System Chapter 11 Functional Organization of Nervous Tissue 11-1 Functions of the Nervous System 1. Sensory input. Monitor internal and external stimuli 2. Integration. Brain and spinal cord process sensory input

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

NERVOUS SYSTEM 1 CHAPTER 10 BIO 211: ANATOMY & PHYSIOLOGY I

NERVOUS SYSTEM 1 CHAPTER 10 BIO 211: ANATOMY & PHYSIOLOGY I BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A This set Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.

More information

Overview of the Nervous System A. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system:

Overview of the Nervous System A. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system: BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A This set Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.

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

Anatomy of a Neuron. Copyright 2000 by BSCS and Videodiscovery, Inc. Permission granted for classroom use. Updated Master 2.

Anatomy of a Neuron. Copyright 2000 by BSCS and Videodiscovery, Inc. Permission granted for classroom use. Updated Master 2. Anatomy of a Neuron Master 2.1 Neurons Interact with Other Neurons through Synapses Master 2.2 Name Date Due Cells of the Nervous System Learning Target: Identify and state the function of the components

More information

Collin County Community College BIOL Week 5. Nervous System. Nervous System

Collin County Community College BIOL 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

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 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

NERVOUS SYSTEM. Somatic (SNS) Fibers - transmit impulses from CNS to control voluntary action of skeletal muscle

NERVOUS SYSTEM. Somatic (SNS) Fibers - transmit impulses from CNS to control voluntary action of skeletal muscle NERVOUS SYSTEM The master controlling and communicating system of the body --- cells communicate via electrical and chemical signals. Signals are rapid, specific and cause almost immediate responses. Functions

More information

Biology 12 Human Biology - The Nervous System Name. Main reference: Biology Concepts and Connects Sixth edition Chapter 28

Biology 12 Human Biology - The Nervous System Name. Main reference: Biology Concepts and Connects Sixth edition Chapter 28 Biology 12 Human Biology - The Nervous System Name Main reference: Biology Concepts and Connects Sixth edition Chapter 28 Vocabulary acetylcholine (ACh), acetylcholinesterase (AChE), action potential,

More information

Biology 201-Worksheet on Nervous System (Answers are in your power point outlines-there is no key!)

Biology 201-Worksheet on Nervous System (Answers are in your power point outlines-there is no key!) Bio 201 Tissues and Skin 1 March 21, 2011 Biology 201-Worksheet on Nervous System (Answers are in your power point outlines-there is no key!) 1. The study of the normal functioning and disorders of the

More information

Faris Haddad. Dania Alkouz. Mohammad-Khatatbeh

Faris Haddad. Dania Alkouz. Mohammad-Khatatbeh 9 Faris Haddad Dania Alkouz Mohammad-Khatatbeh Revision of previous ideas I. The Action potential stages are mainly controlled by Na+ and K+ channels II. These channels can be either pumps (chemical gated)

More information

Week 7 and 8 Master Worksheet

Week 7 and 8 Master Worksheet The Nervous System Week 7 and 8 Master Worksheet 1. Complete the chart regarding the 3 functions of the nervous system: Sensory input What does it do? Integration Motor output 2. Complete the chart: Component

More information

Human Anatomy and Physiology I Laboratory

Human Anatomy and Physiology I Laboratory Human Anatomy and Physiology I Laboratory Histology of Nervous Tissue and The Spinal Cord This lab involves two laboratory exercises: 1) Histology of Nervous Tissue, and 2) Spinal Cord, Spinal Nerves,

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

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

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

Overview. Unit 2: What are the building blocks of our brains?

Overview. Unit 2: What are the building blocks of our brains? Unit 2: What are the building blocks of our brains? Overview In the last unit we discovered that complex brain functions occur as individual structures in the brain work together like an orchestra. We

More information