Anatomy Chapter 12 Review Questions

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describe the gross anatomical features of a cross section of spinal cord:

12.1

a typical spinal cord has how many pairs of spinal nerves and where does the spinal cord end?

31 pairs of nerves and the spinal cord ends at L1 or L2 12.1

define reflex and list the components of a reflex arc:

a reflex is a rapid, automatic response

where is the cerebrospinal fluid that surrounds the spinal cord located?

found in the subarachnoid space which lies beneath the epithelium of the arachnoid mater and superficial to the pia mater 12.2

identify and describe 3 spin al meninges:

pia: elastic and collagen fibers archanoid: simple squamous epithelium dura: collagen fibers 12.2

describe the composition of the gray matter of the spinal cord:

dominated by cell bodies of neurons, neuroglia, and unmyelinated axons 12.1

name the structures and spinal coverings that would be penetrated during a lumbar puncture procedure:

dura mater and arachnoid mater 12.2


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