Chapter 8 Nervous System

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Chapter 8 Nervous System"

Transcription

1 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 of data by brain and spinal cord Motor Output: Motor response Divisions of the Nervous System The central Nervous System (CNS) Peripheral Nervous System (PNS) Consists of Cranial and spinal nerves Two subdivisions Afferent (sensory) Efferent (motor)

2 Nervous Tissue: Neurons Neuroglia 5 types of Neuroglial cells Structure of a Neuron: Cell Body: Dentrites: Axon: Myelin Sheath: Function: Insulation and conduction of nerve impulse Formed by: Schwann cells in the Oligodendrocytes in the Nodes of Ranvier:

3 Structural Classification of Neurons: Unipolar: axon that enters and exits the cell body Bipolar: one dendrite and one axon Found : Multipolar: many dendrites and axon Where Found? Function? Motor Neurons Efferent Sensory Neurons Afferent Interneurons Association Neurons Structural Classification Uni- Bi- polar Multi- Pathway Stimulated by

4 Motor Neuron: Sensory Neuron: Interneuron: Neuroglial Cells and Transmission of Action Potential 6 Types of Neuroglial or Glial Cells: Glia = greek word for glue Special types of that help and provide for nerve cells. neurons and. Supply and to neurons. one neuron from another. Destroy and remove neurons.

5 Name of the Cell Found in CNS or PNS Function Astrocytes Oligodendrocytes Microglia Cells Ependymal Cells Schwann Cells Satellite Cells Nerve Impulse An that travels along a nerve fiber. Travels about. Rapid and of a small portion of the plasma membrane Nerve Signal Conduction potential followed by an potential Resting Potential Electrical charge across the Inside of cell is compared to the outside Sodium ions Potassium ions

6 Depolarization Neurotransmitters open channels rushes into the cell inside of cell is now Repolarization channels open flows out of the cell Inside becomes more Refractory Period Time which the neuron is In mammals, the absolute refractory period is about and the maximum firing frequency is about impulses per second Synapses The between a nerve cell and another cell. To cross a synapse are released. Transmission across a synapse Neurotransmitters stored in in the terminal Impulse reaches terminal channels open Vesicles fuse with membrane are released Receptors bind to membrane Common Neurotransmitters (ACh) (NE) Once released must be removed from synapse (AChE) breaks down ACh

7 CNS: The Brain and Spinal Cord Gray matter- Brain Structure and Function White matter- Meninges: The Protective Coverings Dura Mater (Outermost) Arachnoid Mater Pia Mater (Innermost) Dura mater- Tough, fibrous, tissue Made of layers Separation of layers to form Collection of and extra Arachnoid Mater- connective tissue CSF in the space CSF-clear fluid, Pia Mater- Very thin layer Follows CSF Made by the lining the ventricles Fills all and the Hydrocephalus- in an infant The Spinal Cord Is an extension of the brain Exits the cranial cavity via Runs through the Ends between L & L Cauda equina (horse s tail) The Vertebral Column Made of individual vertebrae separated by Disk herniation

8 Anatomy of the Spinal Cord Inner with a central canal Outer Spinal Nerves Posterior (dorsal) root of a spinal nerve: ( ) fibers Anterior (ventral) root of a spinal nerve: ( ) fibers Spinal nerve joining of posterior & anterior roots The Human Brain: Gyri- Sulci- Major Sections of the Human Brain The cerebrum The diencephalon: Hypothalamus Thalamus Pineal gland The cerebellum The brainstem

9 Peripheral Nervous System (PNS) All the rest of the nerves of your body Two branches o Nervous System o Nervous System Nerve Anatomy = covers nerve itself = covers bundles of axons = covers individual axons Somatic NS pairs of Cranial Nerves pairs of Spinal Nerves Types of Nerves Mixed = Sensory = Motor = Cranial Nerves Spinal Nerves

10 Nerve Plexus: Name of Plexus Nerves found in plexus Services what part of the body Cranial Nerve # Name of Cranial Nerve Function Type of Nerve I Sense of Smell II Sense of sight III Movement of eyelid and eyeball IV Muscles of the eyes V Muscles for chewing (motor) & pain and touch for face and mouth (sensory) VI Muscles for eye movement VII Sense of taste (sensory) & facial expressions (motor) VIII Sense of Hearing IX Sense of taste (sensory), blood pressure, tongue movement (motor) X Innervates smooth muscle of the gut(motor) & feelings of distension/bloating (sensory) XI Movement of neck muscles XII Movement of the tongue

11 The Autonomic Nervous System Two divisions: Sympathetic ( ) Parasympathetic ( ) General Characteristics of Sympathetic and Parasympathetic Both divisions are (involuntary) Both innervate all Both have 2 and 1 Ganglion: place where of the 2 nd ANS neurons exit outside the CNS Some Important functions of the ANS Regulation of Regulation of Control of secretions from Setup of 2 ANS Neurons Neuron 1 (pre-ganglionic neuron): Cell body (spinal cord) and the axon of the CNS Synapses with neuron 2 in the Neuron 2 (post-ganglionic neuron): Cell body in the and the axon continues to the Dendrites synapse with neuron 1 in the and the axon terminals synapse with the

12 Neuron Setup in the Parasympathetic Nervous System Neuron 1 Neuron 2 The ganglion lies far from the spinal cord Neuron Setup in the Sympathetic Nervous System Neuron 1 Neuron 2 The ganglion lies close to the Spinal cord Origin of Sympathetic Nerves

13 Origin of Sympathetic Nerves Origin of Parasympathetic Nerves Functions of the Sympathetic Division prepares the body for emergencies (Fight or flight) increases heart rate raises blood pressure (vasoconstriction) dilates the pupils dilates the trachea and bronchi Converts liver glycogen into glucose shunts blood away from the skin and organs (vasoconstriction) pushes blood toward the skeletal muscles, brain, and heart Functions of the Parasympathetic Division The housekeeper division Rest and Digest Manages functions associated with a relaxed state Contraction of the pupils Promotes digestion of food Slows down the heart rate and decreased heart contraction Increased blood flow to the visceral organs (GI tract), normal peristalsis inhibits peristalsis in the gastrointestinal (GI) tract inhibits contraction of the bladder and rectum

14 Sympathetic Neurotransmitters Parasympathetic Neurotransmitters Reflexes responses Occur quickly mechanisms Cranial Reflexes: Blinking of eyes with sudden clapping near eyes Spinal Reflexes: Quick movement of hand away from the hot pan Reflex Arc 1. Sensory transducer (hitting of patellar tendon) Motor neuron 5. (muscle contraction)

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

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

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

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

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

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

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

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

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

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

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

Cranial Nerves and Spinal Cord Flashcards

Cranial Nerves and Spinal Cord Flashcards 1. Name the cranial nerves and their Roman numeral. 2. What is Cranial Nerve I called, and what does it 3. Scientists who are trying to find a way to make neurons divide to heal nerve injuries often study

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

! 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

The Nervous System: Central Nervous System

The Nervous System: Central Nervous System The Nervous System: Central Nervous System I. Anatomy of the nervous system A. The CNS & the body by: 1. monitoring of the body 2. & information between parts of the body 3. acting as a to gather, store,

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 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

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

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

Nervous System The Brain and Spinal Cord Unit 7b

Nervous System The Brain and Spinal Cord Unit 7b Nervous System The Brain and Spinal Cord Unit 7b Chetek High School Mrs. Michaelsen 9.12 Meninges A. Meninges 1. The organs of the CNS are covered by membranes a. The meninges are divided into 3 layers:

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

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

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

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 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

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

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

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

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

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

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Exam Name 1) A change in the conditions in the synaptic terminal can influence the soma as a result of axoplasmic transport. 2) The nervous system is composed of the brain and spinal cord. A) efferent

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

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 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

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

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

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

Human Anatomy and Physiology

Human Anatomy and Physiology Human Anatomy and Physiology CLS 224 Lama Alzamil Email: lalzamil@ksu.edu.sa 3 rd floor/ office # 117 Chapter 7 The Nervous System The Nervous System 1.Organization of the nervous system. 2.Nervous tissue:

More information

Human Anatomy - Problem Drill 11: The Spinal Cord and Spinal Nerves

Human Anatomy - Problem Drill 11: The Spinal Cord and Spinal Nerves Human Anatomy - Problem Drill 11: The Spinal Cord and Spinal Nerves Question No. 1 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed,

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

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

Autonomic Nervous System Dr. Ali Ebneshahidi

Autonomic Nervous System Dr. Ali Ebneshahidi Autonomic Nervous System Dr. Ali Ebneshahidi Nervous System Divisions of the nervous system The human nervous system consists of the central nervous System (CNS) and the Peripheral Nervous System (PNS).

More information

The Nervous System PART C. PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College

The Nervous System PART C. PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College The Nervous System 7 PART C Protection of the Central Nervous System Scalp and skin Skull and vertebral

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

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

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

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

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

CHAPTER 11: NERVOUS SYSTEM II: DIVISIONS OF THE NERVOUS SYSTEM. 1. Outline the major divisions of the nervous system.

CHAPTER 11: NERVOUS SYSTEM II: DIVISIONS OF THE NERVOUS SYSTEM. 1. Outline the major divisions of the nervous system. CHAPTER 11: NERVOUS II: DIVISIONS OF THE NERVOUS OBJECTIVES: 1. Outline the major divisions of the nervous system. NERVOUS CENTRAL NERVOUS (BRAIN & SPINAL CORD) (INTERNEURONS) PERIPHERAL NERVOUS (CRANIAL

More information

Spinal Cord H. Ruth Clemo, Ph.D.

Spinal Cord H. Ruth Clemo, Ph.D. Spinal Cord H. Ruth Clemo, Ph.D. OBJECTIVES After studying the material of this lecture, the student should be familiar with: 1. Surface anatomy of the spinal cord. 2. Internal structure and organization

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

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

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

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

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

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

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

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 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

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

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

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

Neural Tissue. Chapter 12 Part A

Neural Tissue. Chapter 12 Part A Neural Tissue Chapter 12 Part A Homeostasis Homeostasis refers to maintaining internal environment. How does body maintain homeostasis?? 1. Each cell, tissue or organ maintain their own internal environment

More information

CHAPTER 15 LECTURE OUTLINE

CHAPTER 15 LECTURE OUTLINE CHAPTER 15 LECTURE OUTLINE I. INTRODUCTION A. The autonomic nervous system (ANS) regulates the activity of smooth muscle, cardiac muscle, and certain glands. B. Operation of the ANS to maintain homeostasis,

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

Chapter 14 The Autonomic Nervous System Chapter Outline

Chapter 14 The Autonomic Nervous System Chapter Outline Chapter 14 The Autonomic Nervous System Chapter Outline Module 14.1 Overview of the Autonomic Nervous System (Figures 14.1 14.3) A. The autonomic nervous system (ANS) is the involuntary arm of the peripheral

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

Nervous System Worksheet

Nervous System Worksheet Nervous System Worksheet Name Section A: Intro to Nervous System The Nervous System regulates and coordinates activities within the body. It detects, interprets and responds to changes that occur internally

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

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

Chapter 13. The Spinal Cord & Spinal Nerves. Spinal Cord. Spinal Cord Protection. Meninges. Together with brain forms the CNS Functions

Chapter 13. The Spinal Cord & Spinal Nerves. Spinal Cord. Spinal Cord Protection. Meninges. Together with brain forms the CNS Functions Spinal Cord Chapter 13 The Spinal Cord & Spinal Nerves Together with brain forms the CNS Functions spinal cord reflexes integration (summation of inhibitory and excitatory) nerve impulses highway for upward

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 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

NEURONS ARE ORGANIZED INTO NERVOUS SYSTEMS 34.5

NEURONS ARE ORGANIZED INTO NERVOUS SYSTEMS 34.5 NEURONS ARE ORGANIZED INTO NERVOUS SYSTEMS 34.5 INTRODUCTION The cnidarians have nerve nets, the most simple type of nervous system. The sea anemone has a nerve net that serves simple behaviours such as

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

Chapter 3. Structure and Function of the Nervous System. Copyright (c) Allyn and Bacon 2004

Chapter 3. Structure and Function of the Nervous System. Copyright (c) Allyn and Bacon 2004 Chapter 3 Structure and Function of the Nervous System 1 Basic Features of the Nervous System Neuraxis: An imaginary line drawn through the center of the length of the central nervous system, from the

More information

The Nervous System: Autonomic Nervous System Pearson Education, Inc.

The Nervous System: Autonomic Nervous System Pearson Education, Inc. 17 The Nervous System: Autonomic Nervous System Introduction The autonomic nervous system: Functions outside of our conscious awareness Makes routine adjustments in our body s systems The autonomic nervous

More information

LESSON ASSIGNMENT. Anatomy and Physiology of the Nervous System. After completing this lesson, you should be able to:

LESSON ASSIGNMENT. Anatomy and Physiology of the Nervous System. After completing this lesson, you should be able to: LESSON ASSIGNMENT LESSON 1 Anatomy and Physiology of the Nervous System. LESSON ASSIGNMENT Paragraphs 1-1 through 1-10. LESSON OBJECTIVES After completing this lesson, you should be able to: 1-1. Identify

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

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

Organization and Overview of the Central Nervous System CNS 424. By Prof. Hisham Al-Matubsi

Organization and Overview of the Central Nervous System CNS 424. By Prof. Hisham Al-Matubsi Organization and Overview of the Central Nervous System CNS 424 By Prof. Hisham Al-Matubsi Components Brain, spinal cord, nerves, sensory receptors Responsible for Sensory perceptions, mental activities,

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

The Nervous System. Lab Exercise 29. Objectives. Introduction

The Nervous System. Lab Exercise 29. Objectives. Introduction Lab Exercise The Nervous System Objectives -You should be able to recognize a neuron and identify its components. - Be able to identify the principal components of the brain and be able to name at least

More information

NERVOUS SYSTEM - ORGANIZATION

NERVOUS SYSTEM - ORGANIZATION NERVOUS SYSTEM - ORGANIZATION 2. Choose the key responses that best correspond to the descriptions provided in the following statements. Insert the appropriate letter or term in the answer blanks. Key

More information

Parasympathetic Nervous System

Parasympathetic Nervous System Parasympathetic Nervous System Lecture Objectives Make a list of the components of the system. Make a list of cranial nerves having parasympathetic activity. Describe the parasympathetic ganglia in the

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

NERVOUS SYSTEM. Somatic (SNS) - Fibers send impulses from CNS to control voluntary action of skeletal muscle. impulses from visceral organs to the CNS

NERVOUS SYSTEM. Somatic (SNS) - Fibers send impulses from CNS to control voluntary action of skeletal muscle. impulses from visceral organs to the CNS 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

Spinal Cord Protection. Chapter 13 The Spinal Cord & Spinal Nerves. External Anatomy of Spinal Cord. Structures Covering the Spinal Cord

Spinal Cord Protection. Chapter 13 The Spinal Cord & Spinal Nerves. External Anatomy of Spinal Cord. Structures Covering the Spinal Cord Spinal Cord Protection Chapter 13 The Spinal Cord & Spinal Nerves We are only going to cover Pages 420-434 and 447 Together with brain forms the CNS Functions spinal cord reflexes integration (summation

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

Peripheral Nervous System

Peripheral Nervous System Peripheral Nervous System Nervous system consists of CNS = brain and spinal cord ~90% (90 Bil) of all neurons in body are in CNS PNS = Cranial nerves and spinal nerves ~10% (10 Bil) of all neurons in body

More information

Brain and Cranial Nerves (Ch. 15) Human Anatomy lecture. caudal = toward the spinal cord)

Brain and Cranial Nerves (Ch. 15) Human Anatomy lecture. caudal = toward the spinal cord) Insight: Some cranial nerve disorders Brain and Cranial Nerves (Ch. 15) Human Anatomy lecture I. Overview (Directional terms: rostral = toward the forehead caudal = toward the spinal cord) A. 3 Major parts

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