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

Size: px
Start display at page:

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

Transcription

1 Nervous System 1. Relays messages, processes info, analyzes data 2. Receives information from the environment from CNS to organs and glands 3. Transmits impulses from CNS to muscles and glands 4. Transmits impulses from sense organs to the CNS 5. Regulates voluntary activities 6. Regulates involuntary activities 7. controls organs at rest 8. controls organs in stress

2 Nervous System Central Nervous System Relays messages, processes info, analyzes data Peripheral Nervous System Receives information from the environment from CNS to organs and glands Motor Division Transmits impulses from CNS to muscles and glands Sensory Division Transmits impulses from sense organs to the CNS Somatic Regulates voluntary activities Autonomic Regulates involuntary activities Parasympathetic controls organs at rest Sympathetic controls organs in stress

3 The nervous system is composed predominantly of neural tissue, but also includes blood vessels and connective tissue. Neural tissue consists of two cell types: and

4 Neurons have processes that receive ( ) and processes that send ( ) impulses.

5 Biological messenger molecules ( ) convey these impulses across spaces ( ) between neurons and the cells they affect.

6 Neurons can be classified by structure and function. Structural Classification of Neurons Functional Classification of Neurons

7 A structural neuron in which the cell body has many processes, one of which is an axon and the rest dendrites Most common type of neuron in the brain and spinal cord

8 A structural neuron in which a process arises from each end of the cell body, one an axon and one a dendrite Located in specialized parts of the eyes, nose, and ears

9 A structural neuron in which a single process from the cell body divides into two branches and functions as an axon Located in ganglia

10 Functional neurons that conduct impulses from receptors in peripheral body parts into the brain or spinal cord Mostly unipolar neurons

11 Functional neurons that relay information between neurons in the brain and spinal cord Multipolar neurons

12 Functional neurons that conduct impulses from the brain or spinal cord out to muscles or glands Multipolar neurons

13 CNS Neuroglia

14 CNS star- shaped neuroglial cells between that transport substances between blood vessels and neurons

15 CNS neuroglial cell that forms myelin sheaths in the brain and spinal cord

16 CNS neuroglial cell that function in structural support and phagocytosis for immune protection

17 CNS neuroglial cell that forms a porous layer through which substances diffuse between the interstitial fluid of the brain and spinal cord and the cerebrospinal fluid

18 PNS Neuroglia 1. 2.

19 PNS neuroglial cell that forms myelin sheaths by wrapping tightly around the axons of peripheral neurons

20 PNS neuroglial cells that surround cell bodies of neurons in ganglia

21 There are two ion channels and one pump in the axon that help to conduct the action potential. ü ü ü

22 Voltage- gated Na + channels open when the membrane potential is at.

23 Voltage- gated K + channels open when the membrane potential is at.

24 When the membrane is at rest there are more negative charges inside the cell relative to outside the cell, resulting in a negative membrane potential of.

25 Describe the ion distribution that creates the resting membrane potential.

26 When a neuron receives a stimulus, positive charged ions flow into the cell body. The positive ions diffusing into the cell body cause the membrane potential to (depolarize, repolarize, or hyperpolarize).

27 As the neuron depolarizes, if the membrane potential reaches - 55 mv, what will happen?

28 Once the threshold has been reached, the voltage- gated Na + channels open and an action potential is conducted The Na + ions flow from a high concentration to a low concentration. Therefore, the Na + ions flow in which direction?

29 At +40 mv, Na + channels close and K + channel.

30 K + ions flow from a high concentration to a low concentration. Therefore, they flow in which direction?

31 K + ions flowing into the cell causes the membrane potential to (depolarize, repolarize, or hyperpolarize).

32 The cell actually repolarizes below the resting potential to - 90 mv, a process called (depolarization, repolarization, or hyperpolarization).

33 After hyperpolarization the voltage- gated K + channels.

34 With both voltage- gated ion channels closed, how does the neuron return to the - 70 mv resting membrane potential?

35 Does an impulse travel faster on a myelinated or unmyelinated axon?

36 Why does the impulse travel faster on a myelinated axon?

37 Neurons communicate with each other at.

38 The neuron conducting an impulse to the synapse is the sender, or neuron.

39 The neuron receiving input at the synapse is the neuron.

40 The process by which the impulse in the presynaptic neuron signals the postsynaptic cell is called.

41 Synaptic transmission is a one- way process carried out by chemical.

42 When an impulse reaches the axon terminal, what type of channels open?

43 Calcium diffuses from a high concentration to a low concentration. Therefore, calcium flows in which direction?

44 This influx of calcium ions into the presynaptic neuron, initiates the release of neurotransmitters by the process of.

45 Once the neurotransmitters are released into the synapse, they bind to receptors on the postsynaptic neuron. The effect of the neurotransmitter binding to the receptor could be excitatory or.

46 An excitatory potential could be produced through depolarization by the opening of what type of channels?

47 An inhibitory potential could be produced through hyperpolarization by the opening of what type of channels?

Chapter 17 Nervous System

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

More information

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

Unit Three. I. General Functions of the Nervous System. I. General Functions of the Nervous System

Unit Three. I. General Functions of the Nervous System. I. General Functions of the Nervous System 10 Refer to the following URLs. It is a good idea to print them and bring them to class. Be sure to study these along with your book. http://www.sirinet.net/~jgjohnso/nervous.html http://faculty.washington.edu/chudler/ap.html

More information

Neurons, Synapses, and Signaling

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

More information

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

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

Chapter 11: Nervous System and Nervous Tissue

Chapter 11: Nervous System and Nervous Tissue Chapter 11: Nervous System and Nervous Tissue I. Functions and divisions of the nervous system A. Sensory input: monitor changes in internal and external environment B. Integrations: make decisions about

More information

Chapter 11: Functional Organization of Nervous Tissue

Chapter 11: Functional Organization of Nervous Tissue Chapter 11: Functional Organization of Nervous Tissue I. Functions of the Nervous System A. List and describe the five major nervous system functions: 1. 2. 3. 4. 5. II. Divisions of the Nervous System

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

Function of the Nervous System

Function of the Nervous System Nervous System Function of the Nervous System Receive sensory information, interpret it, and send out appropriate commands to form a response Composed of neurons (functional unit of the nervous system)

More information

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

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

More information

Hole s Human Anatomy and Physiology Eleventh Edition. Chapter 10

Hole s Human Anatomy and Physiology Eleventh Edition. Chapter 10 PowerPoint Lecture Outlines to accompany Hole s Human Anatomy and Physiology Eleventh Edition Shier Butler Lewis Chapter 10 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction

More information

Major Structures of the Nervous System. Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors

Major Structures of the Nervous System. Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors Major Structures of the Nervous System Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors Nervous System Divisions Central Nervous System (CNS) consists

More information

Chapter 12 Nervous Tissue. Copyright 2009 John Wiley & Sons, Inc. 1

Chapter 12 Nervous Tissue. Copyright 2009 John Wiley & Sons, Inc. 1 Chapter 12 Nervous Tissue Copyright 2009 John Wiley & Sons, Inc. 1 Terms to Know CNS PNS Afferent division Efferent division Somatic nervous system Autonomic nervous system Sympathetic nervous system Parasympathetic

More information

The Nervous System 7PART A. PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College

The Nervous System 7PART A. 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 7PART A Functions of the Nervous System Sensory input gathering information To monitor

More information

Chapter 11 Introduction to the Nervous System and Nervous Tissue Chapter Outline

Chapter 11 Introduction to the Nervous System and Nervous Tissue Chapter Outline Chapter 11 Introduction to the Nervous System and Nervous Tissue Chapter Outline Module 11.1 Overview of the Nervous System (Figures 11.1-11.3) A. The nervous system controls our perception and experience

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

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

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

DO NOW: ANSWER ON PG 73

DO NOW: ANSWER ON PG 73 DO NOW: ANSWER ON PG 73 1. Name 1 neurotransmitter that we have learned about. 2. Draw a basic graph of a neuron action potential. Label resting potential, threshold, depolarization, and repolarization

More information

Chapter Six Review Sections 1 and 2

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

More information

THE NERVOUS SYSTEM. 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

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

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

Neurophysiology scripts. Slide 2

Neurophysiology scripts. Slide 2 Neurophysiology scripts Slide 2 Nervous system and Endocrine system both maintain homeostasis in the body. Nervous system by nerve impulse and Endocrine system by hormones. Since the nerve impulse is an

More information

D) around, bypassing B) toward

D) around, bypassing B) toward Nervous System Practice Questions 1. Which of the following are the parts of neurons? A) brain, spinal cord, and vertebral column B) dendrite, axon, and cell body C) sensory and motor D) cortex, medulla

More information

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

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

More information

AP Biology Unit 6. The Nervous System

AP Biology Unit 6. The Nervous System AP Biology Unit 6 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

More information

Hole s Human Anatomy and Physiology Tenth Edition. Chapter 10

Hole s Human Anatomy and Physiology Tenth Edition. Chapter 10 PowerPoint Lecture Outlines to accompany Hole s Human Anatomy and Physiology Tenth Edition Shier Butler Lewis Chapter 10 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or

More information

Warm-Up. Label the parts of the neuron below.

Warm-Up. Label the parts of the neuron below. Warm-Up Label the parts of the neuron below. A B C D E F G Warm-Up 1. One neuron transmits a nerve impulse at 40 m/s. Another conducts at the rate of 1 m/s. Which neuron has a myelinated axon? 2. List

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

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

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

Study Guide Answer Key Nervous System

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

More information

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

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

5-Nervous system II: Physiology of Neurons

5-Nervous system II: Physiology of Neurons 5-Nervous system II: Physiology of Neurons AXON ION GRADIENTS ACTION POTENTIAL (axon conduction) GRADED POTENTIAL (cell-cell communication at synapse) SYNAPSE STRUCTURE & FUNCTION NEURAL INTEGRATION CNS

More information

Unit 2 Notes: Cells & Organization

Unit 2 Notes: Cells & Organization Unit 2 Notes: Cells & Organization (1) Neurons A neuron is a nerve cell. There are 2 types of neurons: Multipolar and Unipolar Every neuron has the same structural parts: Dendrites Receive incoming messages.

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

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

Lecture 22: A little Neurobiology

Lecture 22: A little Neurobiology BIO 5099: Molecular Biology for Computer Scientists (et al) Lecture 22: A little Neurobiology http://compbio.uchsc.edu/hunter/bio5099 Larry.Hunter@uchsc.edu Nervous system development Part of the ectoderm

More information

All questions below pertain to mandatory material: all slides, and mandatory homework (if any).

All questions below pertain to mandatory material: all slides, and mandatory homework (if any). ECOL 182 Spring 2008 Dr. Ferriere s lectures Lecture 6: Nervous system and brain Quiz Book reference: LIFE-The Science of Biology, 8 th Edition. http://bcs.whfreeman.com/thelifewire8e/ All questions below

More information

Outline. Neuron Structure. Week 4 - Nervous System. The Nervous System: Neurons and Synapses

Outline. Neuron Structure. Week 4 - Nervous System. The Nervous System: Neurons and Synapses Outline Week 4 - The Nervous System: Neurons and Synapses Neurons Neuron structures Types of neurons Electrical activity of neurons Depolarization, repolarization, hyperpolarization Synapses Release of

More information

Nervous System. Chapter 9 Pages

Nervous System. Chapter 9 Pages Nervous System Chapter 9 Pages 211-257 Chapter 9 Wordbytes 1. af- = toward 11. -ferrent = carried 2. arachn- = spider 12. gangli- = swelling 3. astro- = star 13. -glia = glue 4. auto- = self 14. mening-

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

sensory input receptors integration Human Anatomy motor output Ch. 7 effectors Structural classification

sensory input receptors integration Human Anatomy motor output Ch. 7 effectors Structural classification Human Anatomy Ch. 7 I. The Nervous System A. General characteristics 1. body s control & communication center a. 3 overlapping functions 1) sensory input: receptors monitor stimuli 2) integration: processes,

More information

MOLECULAR AND CELLULAR NEUROSCIENCE

MOLECULAR AND CELLULAR NEUROSCIENCE MOLECULAR AND CELLULAR NEUROSCIENCE BMP-218 November 4, 2014 DIVISIONS OF THE NERVOUS SYSTEM The nervous system is composed of two primary divisions: 1. CNS - Central Nervous System (Brain + Spinal Cord)

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

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

BIOL241 - Lecture 12a

BIOL241 - Lecture 12a Cranial Nerves, source: training.seer.cancer.gov Nervous System Overview BIOL241 - Lecture 12a 1 Topics Divisions of the NS: CNS and PNS Structure and types of neurons Synapses Structure and function of

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

General Functions (3) 1.Sensory gathers information 2.Integrative information is brought together 3.Motor responds to signals, homeostasis

General Functions (3) 1.Sensory gathers information 2.Integrative information is brought together 3.Motor responds to signals, homeostasis Nervous System Responsible for being aware of the world, coordinating body functions and maintaining homeostasis Information from inside and outside the body is brought to the brain and spinal cord, stimulating

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

Functional Organization of Nervous Tissue. Nervous tissue, charachteristics, neurons, glial cells. The Nervous System. The Nervous System 21/12/2010

Functional Organization of Nervous Tissue. Nervous tissue, charachteristics, neurons, glial cells. The Nervous System. The Nervous System 21/12/2010 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

Neurons, Synapses and Signaling. Chapter 48

Neurons, Synapses and Signaling. Chapter 48 Neurons, Synapses and Signaling Chapter 48 Warm Up Exercise What types of cells can receive a nerve signal? Nervous Organization Neurons- nerve cells. Brain- organized into clusters of neurons, called

More information

ANATOMY AND PHYSIOLOGY OF NEURONS. AP Biology Chapter 48

ANATOMY AND PHYSIOLOGY OF NEURONS. AP Biology Chapter 48 ANATOMY AND PHYSIOLOGY OF NEURONS AP Biology Chapter 48 Objectives Describe the different types of neurons Describe the structure and function of dendrites, axons, a synapse, types of ion channels, and

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

2/27/2019. Functions of the Nervous System. Nervous Tissue and Neuron Function. Fundamentals Of The Nervous System And Nervous Tissue

2/27/2019. Functions of the Nervous System. Nervous Tissue and Neuron Function. Fundamentals Of The Nervous System And Nervous Tissue Nervous Tissue and Neuron Function Fundamentals Of The Nervous System And Nervous Tissue Learn and Understand 1. Like muscle cells, neurons use membrane polarity upset (AP) as a signal therefore keeping

More information

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

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

More information

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

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

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

More information

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

Nervous System Dr. Naim Kittana Department of Biomedical Sciences Faculty of Medicine & Health Sciences An-Najah National University

Nervous System Dr. Naim Kittana Department of Biomedical Sciences Faculty of Medicine & Health Sciences An-Najah National University Nervous System Department of Biomedical Sciences Faculty of Medicine & Health Sciences An-Najah National University Declaration The content and the figures of this seminar were directly adopted from the

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

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

More information

Thursday, January 22, Nerve impulse

Thursday, January 22, Nerve impulse Nerve impulse Transmembrane Potential caused by ions moving through cell membrane at different rates Two main ions of concern Na + - Sodium K + - potassium Cell membrane not freely permeable therefore

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

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

Functions of the Nervous System. Fundamentals of the Nervous System & Nervous Tissue

Functions of the Nervous System. Fundamentals of the Nervous System & Nervous Tissue Fundamentals of the Nervous System & Nervous Tissue Overview Structure cell types & structures Neurophysiology membrane potential Synapse, neurotransmitters & receptors Functions of the Nervous System

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

THE NERVOUS SYSTEM. Station 9 : THE SPINAL CORD

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

More information

NERVOUS SYSTEM CELLS. a. afferent division CHAPTER 12 ORGANIZATION OF THE NERVOUS SYSTEM. Student Name

NERVOUS SYSTEM CELLS. a. afferent division CHAPTER 12 ORGANIZATION OF THE NERVOUS SYSTEM. Student Name Student Name CHAPTER 12 NERVOUS SYSTEM CELLS T he nervous system organizes and coordinates the millions of impulses received each day to make communication with and enjoyment of our environment possible.

More information

Neurophysiology. Corresponding textbook pages: ,

Neurophysiology. Corresponding textbook pages: , Neurophysiology Corresponding textbook pages: 436-440, 442-455 Organization Helps maintain homeostasis in the body Nervous system and endocrine system Nervous system is faster due to nerve impulses 1 Fig.

More information

Chapter 4 Neuronal Physiology

Chapter 4 Neuronal Physiology Chapter 4 Neuronal Physiology V edit. Pg. 99-131 VI edit. Pg. 85-113 VII edit. Pg. 87-113 Input Zone Dendrites and Cell body Nucleus Trigger Zone Axon hillock Conducting Zone Axon (may be from 1mm to more

More information

Nervous Tissue and Neurophysiology

Nervous Tissue and Neurophysiology Nervous Tissue and Neurophysiology Objectives Describe the two major divisions of the nervous system and their characteristics. Identify the structures/functions of a typical neuron. Describe the location

More information

CHAPTER 44: Neurons and Nervous Systems

CHAPTER 44: Neurons and Nervous Systems CHAPTER 44: Neurons and Nervous Systems 1. What are the three different types of neurons and what are their functions? a. b. c. 2. Label and list the function of each part of the neuron. 3. How does the

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

The Nervous System 12/11/2015

The Nervous System 12/11/2015 The Nervous System Biology 12 Unit 3: Homeostasis December 11, 2015 The nervous system is an elaborate communication system that contains more than 100 billion nerve cells in the brain alone There are

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 AP Biology

The Nervous System AP Biology The Nervous System 2005-2006 Neuron (nerve cell) signal direction dendrites cell body Structure fits function, it have many entry points for signal one path out transmits signal Nodes of Ranvier axon signal

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

Man and his environment

Man and his environment Man and his environment Dr. Elriah M. Makie 0122858517 Nervous Tissue BSc.M.Sc.MBBS Introduction The nervous system is divided into two main parts: The central nervous system (CNS) comprising the brain

More information

THE HISTORY OF NEUROSCIENCE

THE HISTORY OF NEUROSCIENCE THE HISTORY OF NEUROSCIENCE BIOLOGICAL ASPECTS OF BEHAVIOR: THE NEURON & NEURAL COMMUNICATION NERVOUS SYSTEM Combined activity of the brain, spinal cord & other nerve fibers Acts as an information processing

More information

The Nervous System PART A

The Nervous System PART A 7 The Nervous System PART A PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB Structural Classification

More information

Nervous Tissue Nervous tissue is the term for groups of organized cells in the nervous system, which is the organ system that controls the body s

Nervous Tissue Nervous tissue is the term for groups of organized cells in the nervous system, which is the organ system that controls the body s Nervous Tissue Nervous tissue is the term for groups of organized cells in the nervous system, which is the organ system that controls the body s movements, sends and carries signals to and from the different

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

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 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

Chapter 7. The Nervous System Chapter 7 The Nervous System General overview of the nervous system functions Sensory input (info travels in along afferent pathways) Integration (information is processed) Sensory neurons Spinal cord

More information

Biology 218 Human Anatomy

Biology 218 Human Anatomy Chapter 17 Adapted form Tortora 10 th ed. LECTURE OUTLINE A. Overview of the Nervous System (p. 537) 1. The nervous system and the endocrine system are the body s major control and integrating centers.

More information

Chapter 9. Nervous System

Chapter 9. Nervous System Chapter 9 Nervous System Central Nervous System (CNS) vs. Peripheral Nervous System(PNS) CNS Brain Spinal cord PNS Peripheral nerves connecting CNS to the body Cranial nerves Spinal nerves Neurons transmit

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

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

3) Most of the organelles in a neuron are located in the A) dendritic region. B) axon hillock. C) axon. D) cell body. E) axon terminals.

3) Most of the organelles in a neuron are located in the A) dendritic region. B) axon hillock. C) axon. D) cell body. E) axon terminals. Chapter 48 Neurons, Synapses, and Signaling Multiple-Choice Questions 1) A simple nervous system A) must include chemical senses, mechanoreception, and vision. B) includes a minimum of 12 ganglia. C) has

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

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

Nervous System. Lesson 11

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

More information

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