Histology and Gross Anatomy of the Nervous System

Slides:



Advertisements
Similar presentations
THE NERVOUS SYSTEM PART 1 CHAPTER 11.
Advertisements

Nervous Tissue.
Nervous Tissue.
Introduction to Nervous System Dr. Sama-ul-Haque.
Fundamentals of the Nervous System and Nervous Tissue
N. nerve Node of Ranvier Perikaryon Schwann Cell nerve Axon Hillock Dendrite Axon Terminal Axon Nucleus of Schwann cell Nucleus.
Histo On Your Nerves SSN Histology October 26th, 2004 Missy Walker, So Young Kim,
Neuroglia Cells Neuroglia Cells astrocyte capillary neuron microglial cell ependymal cells Schwann cellsatellite cells unipolar neuron oligodendrocyte.
NERVOUS TISSUE.
THE NERVOUS SYSTEM.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings C h a p t e r 12 Neural Tissue PowerPoint® Lecture Slides prepared by.
Nervous Tissue Ch. 17, p257. Nervous Tissue Neurons Neuroglia – CNS: Astrocytes Oligodendrocytes Microglia Ependymal Cells – PNS: Schwann Cells Satellite.
Fundamentals of the Nervous System and Nervous Tissue Part A
The Nervous System: Neural Tissue Chapter 13. Human Anatomy, 3rd edition Prentice Hall, © 2001 Introduction Nervous system = control center & communications.
Part 1: The Nervous System ANATOMY & PHYSIOLOGY. Three Functions of the Nervous System: Sensory Input: Gathers stimuli (receives information) Integration:
The Nervous System Poudre High School By: Ben Kirk.
Anatomy & Physiology. Nervous Tissue & Homeostasis excitable characteristic of nervous tissue allows for generation of nerve impulses (action potentials)

Functions of the Nervous System
Essentials of Anatomy and Physiology Fifth edition Seeley, Stephens and Tate Slide 2.1 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin.
Histology of the Nervous Tissue 1. nervous system overview Nervous system  Monitors and processes sensory information from the environment and from within.
 Neurons = nerve cells  The major function of nerve cells is to transmit messages (nerve impulses) from one part of the body to another. ◦ Major regions.
Nervous system Nervous tissue is highly specialized to employ modifications in membrane electrical potentials to relay signals throughout the body. Neurons.
The Nervous System. Functions of the Nervous System Sensory input—gathering information To monitor changes occurring inside and outside the body Changes.
The Nervous System.
Fundamentals of the Nervous System and Nervous Tissue
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.
Human Anatomy & Physiology FIFTH EDITION Elaine N. Marieb PowerPoint ® Lecture Slide Presentation by Vince Austin Copyright © 2003 Pearson Education, Inc.
Histology of Nervous Tissue PROF. DR. FAUZIAH OTHMAN DEPT OF HUMAN ANATOMY.
Nervous Tissue. Neuroglia “Nerve Glue” (Support Cells) Neuroglia - nonconductiong cells that provide protection & support and assist with metabolism.
Histology of Nervous Tissue
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.
Second lecture Functions of neuroglea 1-Support. 2-Insulator. 3-Phagocytes (in pathological state by microglea). 4-Formation of myelin sheath in CNS.
Human Anatomy & Physiology, Sixth Edition Elaine N. Marieb 11 Fundamentals of the Nervous System and Neural Tissue Part A.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Nervous System  The master controlling and communicating system of the body.
Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 7.1 – 7.22 Seventh Edition Elaine.
Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 7.1 – 7.22 Seventh Edition Elaine.
Chapter 7 The Nervous System. Functions of the Nervous System 1. Sensory input – gathering information  monitor changes inside and outside the body 
Chapter 8. The Nervous System The system of cells, tissues, and organs that regulates the body’s response to internal and external stimuli.
NERVOUS SYSTEM NERVOUS TISSUE. Nervous System - General Control System Regulator of Homeostasis Electrical Impulses Rapid & Transient Effects.
The Nervous System: Neural Tissue
Fundamentals of the Nervous System
Kharkov National Medical University
Neuron Model.
Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 7.1 – 7.22 Seventh Edition Elaine.
The Nervous System maintains homeostasis and responds to stimuli faster than any other system! Part A. Organization Part B. Neural Tissue Chapter 12 Organization.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology, Sixth Edition Elaine N. Marieb PowerPoint ® Lecture.
The Nervous System: Neural Tissue Chapter 13. Human Anatomy, 3rd edition Prentice Hall, © 2001 Introduction Nervous system = control center & communications.
ELAINE N. MARIEB EIGHTH EDITION 7 Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation by.
CH 10 Functions of the Nervous System The master controlling and communicating system of the body Functions 1.Sensory input: detects external and internal.
Histology of Nervous Tissue
NERVOUS TISSUE Forms the nervous system which is divided into:
INTRODUCTION TO THE NERVOUS SYSTEM. Functions of the Nervous System.
Chapter 12 Nervous System Cells Introduction The function of the nervous system, along with the endocrine system, is to communicate –Controls and integrates.
Introduction to Nervous System
Nervous System Histology
Lecture 1 NERVOUS SYSTEM Dr. Thana Al-Khishali. NERVOUS SYSTEM Anatomy Physiology Histology  Neurons  Glial cells  Central Nervous System CSF, BBB,
Nervous System Histology
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology, Sixth Edition Elaine N. Marieb PowerPoint ® Lecture.
Lab 9 The Nervous System: Histology and The Brain.
Nervous System Histology
Nervous System Histology
Histology of Nervous Tissue
Nervous tissue.
Histology of the Nervous Tissue
Nerve Notes.
Figure Neuroglia. Capillary Neuron Astrocyte
Histology of Nervous Tissue
Presentation transcript:

Histology and Gross Anatomy of the Nervous System Lab 9 Histology and Gross Anatomy of the Nervous System

Lab 9 Activities Identify neuron, pyramidal cell, Purkinje cell, and peripheral nerve slides Identify boldfaced structures on brain models Identify specified parts in lab manual on sheep brain dissection Identify cranial nerves (by name + number I - XII)

Parts of a Neuron Soma Dendrites Axon

Cell Body (Soma) Contains the usual cellular organelles Primary site of synthesis & metabolism Cell membrane contains receptors to respond to stimuli Cell membrane transmits graded potentials Most cell bodies are located within the CNS clusters of neuron cell bodies in the CNS are called nuclei clusters of neuron cell bodies in the PNS are called ganglia

Dendrites Short, tapering, highly branched processes Not myelinated Contain some cell organelles Cell membrane contains receptors to respond to stimuli Transmit graded potentials towards the soma

Axons (nerve fiber) Originate at a cone-shaped region – the axon hillock A single process that transmits action potentials away from the soma May be long (1 meter) or short (1 mm) May branch (=collaterals) Collaterals end at axonal terminals synapse with neurons or effector cells (muscles or glands)

The Myelin Sheath Lipid-rich, covering of axons Oligodendrocytes in CNS Neurilemmocytes in PNS Dendrites are never myelinated Protects & electrically insulates Increases speed of nerve impulses 10-150x faster than unmyelinated fibers

structural Classifications Neurons structural Classifications

Multipolar Neuron (slide #24) Many processes originate from soma

Bipolar Neuron Two processes originate from soma

Unipolar Neuron A single process originates from soma

Neurons Specific types

Pyramidal Cells (slide #29)

Pyramidal Cells

Pyramidal Cells

Purkinje Cells (slide #30)

Purkinje Cells of Cerebellum

Purkinje Cells

Purkinje Cells cytoskeleton stain

Peripheral Nerve Connective tissue elements: Epineurium (wraps nerve) Perineurium (wraps fascicle) Endoneurium (wraps axon & myelin sheath)

Nerve, cross-section (slide #28) Epineurium Perineurium Endoneurium

Nerve, cross section, Fascicles Epineurium Perineurium Endoneurium

Nerve, cross section, Myelinated Fibers

Myelinated Axons, cross-section

Myelinated Axons, cross-section

Nerve, Long Section, 40X (slide # 28)

Nerve, long section, 100X

Neurofibrilar Node Nerve, 400X

Neurofibrilar Node, 1000X

Sheep Brain Dissection Dura mater partially removed

Sheep Brain Dissection and pia mater

Sheep Brain Dissection

Sheep Brain Dissection Note: pituitary removed

Sheep Brain Dissection

Sheep Brain in Cross Section

Key to Sheep Brain in Cross Section 1. Gray Matter 2. White Matter 3. Corpus Callosum 4. Lateral Ventricle 5. Caudate Nucleus 6. Septum Pellucidum 7. Fornix 8. Optic Chiasm 9. Third Ventricle 10. Thalamus 11. Corona Radiata 12. Hippocampus 13. Cerebral Aqueduct 14. Pituitary Gland 15. Pineal Gland

Human Cranial Nerves

Human Cranial Nerves

End of Lab 9 Presentation

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

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