The Neuron Dendrites Cell body (perikaryon, soma)

Slides:



Advertisements
Similar presentations
Histology of Nervous Tissue
Advertisements

Nervous Tissue.
Introduction to Nervous System Dr. Sama-ul-Haque.
Lecture packet 9 Reading: Chapter 7
Figure 11.3 Neuroglia. © 2014 Pearson Education, Inc. Capillary Neuron
© 2012 Pearson Education, Inc. ©NIH 1 1.) 2.) 3.) 4.) 5.)
THE NERVOUS SYSTEM.
DR. ZAHOOR ALI SHAIKH LECTURE --9
4.4 Nervous Tissue * L: brain, spinal cord, nerves * F: transmit information.
Nervous Tissue Ch. 17, p257. Nervous Tissue Neurons Neuroglia – CNS: Astrocytes Oligodendrocytes Microglia Ependymal Cells – PNS: Schwann Cells Satellite.
PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.
Nervous System Delanie Cyr Jacob Butcher Jacklyn Jaronik Claudia Bishop.
The Nervous System: Neural Tissue Chapter 13. Human Anatomy, 3rd edition Prentice Hall, © 2001 Introduction Nervous system = control center & communications.
Functions of the Nervous System
Histology of the Nervous Tissue 1. nervous system overview Nervous system  Monitors and processes sensory information from the environment and from within.
10.1: Introduction Cell types in neural tissue: Neurons
The Function & Anatomy of Neurons What is a Neuron?  It is the cell of nerve tissue that is responsive and conducts impulses within the Nervous System.
AP Biology Nervous Systems Part 1.
Types of Neurons and Nerve Impulses. Parts of a Neuron Cell body Axon – nerve fiber running from cell body to synapse Synapse – terminating end of neuron.
Histology of Nervous Tissue
Transmission 1. innervation - cell body as integrator 2. action potentials (impulses) - axon hillock 3. myelin sheath.
Chapter 12 Intro to the Nervous System. The Nervous System The most complex system Coordinates activities of all body systems Two divisions: The Central.
Detects changes in the body Make decisions Stimulate muscles or glands to respond Works by sending an electrical signal known as an action potential through.
Neuron Structure and Function. Nervous System  Nervous system is composed of specialized cells called neurons.  Neurons have long “arms” called axons.
Nervous Tissue. Neuron (motor)  Nerves – bundles of neurons held together by connective tissue (found in PNS)  Neurons – specialized nerve cells that.
NERVOUS SYSTEM CLICKERS ON-HARD COPY 1-10 MUST WRITE ANSWER CHOICE + LETTER 50 PTS! A 100 gets you PB-B-N treat A & P Quiz #5.
Membrane receptor types
Nervous Tissue Chapter 12. Nervous System Controls and integrates all body activities Basic functions: Sense change Interpret and remember change React.
The Nervous System Components Brain, spinal cord, nerves, sensory receptors Responsible for Sensory perceptions, mental activities, stimulating muscle.
The Nervous System. Introduction In all animals, except the sponges, responses to stimuli depend on the activities of networks of nerve cell, or neurons.
Chapter 7 The Nervous System. Functions of the Nervous System 1. Sensory input – gathering information  monitor changes inside and outside the body 
Neurons and Neurotransmitters. Nervous System –Central nervous system (CNS): Brain Spinal cord –Peripheral nervous system (PNS): Sensory neurons Motor.
Functions of the nervous system The nervous system is responsible for: - sensory perception - cognitive functions - motor functions - regulatory functions.
THE NERVOUS SYSTEM Chapter 8. Neural Tissue Neurons Neuroglia.
Introduction to Nervous System. Composition of Nervous System Two main divisions Two main divisions 1) Central Nervous system (CNS) brain and spinal chord.
The Nervous System: Neural Tissue
The Nervous System Control Center for Maintaining Homeostasis.
Warm Up List the events in the nervous system that occur if you accidentally get a paper cut. How does your body respond?
Lecture Objectives: Identify and define the structures of the neuron
Sport Books Publisher1 Information Processing in Motor Learning Chapter 10.
Nervous System Part 1.
Nervous System (Overview)
The master communication center of the body.. 3 Main Functions:  Monitor all information about changes occurring both inside and outside the body. 
DR /Noha Elsayed Anatomy &Physiology CLS 221 Nervous system.
The Nervous System.
The Nervous System: Neural Tissue Chapter 13. Human Anatomy, 3rd edition Prentice Hall, © 2001 Introduction Nervous system = control center & communications.
Neuron Structure and Function. Nervous System  Nervous system is composed of specialized cells called neurons.  Neurons have long “arms” called axons.
AP Biology Nervous Systems Part 1.
 Elaborate communication system that contains more than 100 billion nerve cells in the brain alone  Control the actions of the body  Makes adjustments.
CH 10 Functions of the Nervous System The master controlling and communicating system of the body Functions 1.Sensory input: detects external and internal.
Chapter 7.  Cell body(soma)  Axon Hillock  Axon  Axon Terminal  Dendrites  Myelin Sheath.
AP Biology Nervous Systems Part 3. Synapse and Neurotransmitter.
What you should know The parts of the nerve What an action potential is How nerve cells are insulated and the function of this How nerve cells communicate.
The Nervous System: Neural Tissue. Introduction –Nervous system = control center & communications network –Functions  Stimulates movements  Maintains.
Chapter 34 Opener Chapter 34: Neurons and The Nervous System.
Fundamentals of the Nervous System and Nervous Tissue.
Introduction to Nervous System
Neurons. Nervous System –Central nervous system (CNS): Brain Spinal cord –Peripheral nervous system (PNS): Sensory neurons Motor neurons (somatic and.
Nervous System Part 3: Neurons & Nerve Impulses. Neuron Structure A neuron is a nerve cellA neuron is a nerve cell The nucleus of a neuron and most of.
Chapter 28 Nervous system. NERVOUS SYSTEM STRUCTURE AND FUNCTION © 2012 Pearson Education, Inc.
Nervous System. The nervous system is broken down into two major parts:
Nervous Tissue.
Do Now 1/7/15 Welcome back – happy 2015!
Intro to the Nervous System 9(a). Organization of the Nervous System Central Nervous System (CNS) – Includes the nerves of the brain and spinal cord.
Histology of the Nervous Tissue
Neuron Structure.
Neuron Structure & Function
7 The Nervous System PPT-A 33 slides 2 hour.
Capillary Neuron Astrocyte
Endocrine System Nervous System
Presentation transcript:

The Neuron Dendrites Cell body (perikaryon, soma)

Axon

Support cells (neuroglia) - more abundant than neurons - more mitotic capability

Axon hillock

Gaps between Schwann cells called nodes of Ranvier axolemma

Myelinated axons: sheath of Schwann and myelin sheath one Schwann cell myelinates a single axon multiple Schwann cells needed to cover entire length of an axon

Oligodendrocytes myelinate CNS axons (if myelinated)

Central Nervous System 1. brain 2. spinal cord - ganglia associated

3. axons project to and from the body (CNS  PNS) 4. cell bodies in CNS except some in ganglia

Transmission 1. innervation - cell body as integrator 2. action potentials (impulses) - axon hillock 3. myelin sheath

Synapses - presynaptic terminal - postsynaptic terminal - neurotransmitters - ligand-gated ions channels on postsynaptic membrane

Gap junction (nexus) - is an electrical synapse

Nervous System Organization of neurons 1. circuits for stimulus-response 2. exchange of information

Neuron signaling 1. afferent vs. efferent 2. interneurons 3. circuits

Anencephaly

Spina bifida occulta with meningocoele

Spina bifida with failure of neuropore closure

Cortical dysplasia

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.