SPINAL CORD ANATOMY.

Slides:

Advertisements

Similar presentations

Spinal cord and spinal nerves

Advertisements

February 10, 2015  Objective:  To describe the anatomy and physiology of the spinal cord  To list and describe the function of the protective coverings.

Spinal Cord By Michael J. Harman . Meninges Meninges: Pia Mater Thin inner membrane covering brain and spinal cord.

Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Frederic H. Martini PowerPoint.

Spinal Cord and Nerves.

11-1 Nervous Tissue I: Functional Organization, Spinal Cord and Spinal Nerves Lecture 12.

Spinal Cord (sp cd) and Nerves. NERVOUS SYSTEM 1.Collect sensory input 2.Integrate sensory input 3.Motor output Functions of Nervous System.

The Central Nervous System: Part D

Spinal Cord and Nerves.

Copyright © 2010 Pearson Education, Inc. Spinal Cord Location Begins at the foramen magnum Solid cord ends around L 1 vertebra Filum terminal below that.

Chapter 13: The Spinal Cord and Spinal Nerves

Spinal Cord, Human Reflex

1 The NERVOUS SYSTEM Spinal Cord and Spinal Nerves and meninges Dr. K V K

Spinal Cord, Spinal Nerves, Spinal Reflexes

Spinal Cord and Spinal Nerves $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Spinal Cord Anatomy FINAL ROUND Reflexes Nerve Anatomy Upper Body.

The Spinal Cord & Spinal Nerves Together with brain forms the CNS Functions –spinal cord reflexes –integration (summation of inhibitory and excitatory)

The Central Nervous System Poudre High School By: Ben Kirk.

Cervical enlargement Cervical plexus Brachial plexus Phrenic nerve Medial cord Lateral cord Posterior cord.

Lab Ex. 27 Spinal Cord By Michael J. Harman . Meninges.

Spinal Cord, Spinal Nerves

Spinal Cord and Spinal Nerves Major association,reflex and communication center Conduction route to and from the brain.

Cervical enlargement Lumbar enlargement Conus medullaris- the terminal end of the spinal cord Cauda equina - collection of spinal nerves transversing.

Spinal Cord: Meninges The spinal meninges (dura mater, arachnoid mater, and pia mater) are layers of connective tissue that protect the spinal cord and.

There are 2 types of cells in the Nervous System: 1) Neurons

Spinal Cord Dr Rania Gabr.

Meninges and Spinal Cord

Spinal cord External features

CNS – The Spinal Cord, Spinal Nerves & Spinal Reflexes

Spinal Cord and Nerves. The Nervous System Coordinates the activity of muscles, organs, senses, and actions Made up of nervous tissue Has 3 main functions:

Biology 211 Anatomy & Physiology I Dr. Thompson The Spinal Cord.

Week 12 The Spinal Cord & PNS What’s ahead Identify structures of the spinal cord Identify peripheral nerves Identify components of the reflex arc.

Week 11 The Spinal Cord.

Anatomy of the Spinal Cord Cervical enlargment lumbar enlargement conus medullaris Cervical enlargment (C 7 -C 8 ), lumbar enlargement (T 11 -T 12 ),

Spinal Cord I Dr Ayman Abu-Tabanja.

SPINAL CORD ANATOMY. General Characteristics Approx. ½ meter in length. Approx. ½ meter in length. Varies from 1 to 1.5 cm in diameter. Varies from 1.

Spinal cord D.Nimer D.Rania Gabr D.Safaa D.Elsherbiny.

Functional Organization of the Spinal Cord Chapter 12.

Nervous System. Spinal cord.

November 14, 2016 Objective: Journal:

Meninges and Spinal Cord

Spinal Cord- Structure and Function Pages

Ch. 13 The Anatomy Of The Nervous System Ch

Week 11 The Spinal Cord & PNS.

Nervous System.

Exercise 15: Activities 1, figure 15.2, figure 15.4 p. 181

Fig 12.28b Meninges.

Spinal cord and spinal nerves

Spinal Cord and Spinal Nerves

THIS IS A STUDY GUIDE, NOT AN ALL INCLUSIVE REVIEW.

Spinal Cord and Spinal Nerves

Central Nervous System

SPINAL CORD, SPINAL NERVE and SPINAL PLEXUSES

Spinal Cord Notes.

Figure 19.1 Gross structure of the spinal cord, dorsal view.

Anatomy of Spinal Nerves

Spinal Meninges Three membranes surround all of CNS 3) Pia mater

Biology 322 Human Anatomy I

Spinal Cord and Spinal Nerves

Central Nervous System (CNS): Brain and Spinal Cord

Histology Slides for Nervous Tissues

Spinal Cord and Reflexes

Biology 211 Anatomy & Physiology I

Nervous System By Dr. Maher T. AL-Hadidi And Dr. Amjad Al- Shatart

Nervous System By Dr. Maher T. AL-Hadidi And Dr. Amjad Al- Shatart

Anatomy of the spinal cord

8 The Nervous System.

The Nervous System: Spinal Cord and Spinal Nerves

The Nervous System: Spinal Cord and Spinal Nerves

Presentation transcript:

SPINAL CORD ANATOMY

General Characteristics Approx. ½ meter in length. Varies from 1 to 1.5 cm in diameter Enlargements: Cervical: C3 – T1 Lumbar region: L1 – S2

General Characteristics Conus medullaris: Ends at about the level of L2. Cauda equina. Filum terminale: Thin filament of meningeal tissue extending from conus medullaris to the coccyx.

Spinal Nerves 08 cervical 12 thoracic 05 lumbar 05 sacral 01 coccygeal Numbering system

Plexuses Cervical: C1 – C4 Brachial: C5 – T1 Lumbosacral: L1 – S4

Meninges Epidural space Dura mater Subdural space Arachnoid Tough outer layer Subdural space Arachnoid

Meninges Subarachnoid space Pia mater Contains CSF Delicate innermost layer

Spinal Cord Cross-Sectional Anatomy Central canal Gray matter “H”-shaped White matter

Gray Matter Forms regions known as horns. Equivalent of CNS nuclei. Posterior (dorsal) horns: Receive incoming sensory fibers. Anterior (ventral) horns: Site of cell bodies of alpha motor neurons to skeletal muscle fibers.

Gray Matter Lateral horns: Located only in thoracic and upper lumbar regions. Site of cell bodies of ANS motor neurons.

White Matter Forms longitudinal columns (funiculi). Consists of myelinated tracts. Posterior (dorsal) columns. Anterior (ventral) columns. Lateral columns.

Commissures White: Anterior and posterior. Gray: