chapter 8 Organization of Nervous Tissue

Question 1

The nervous tissue varies in color

Answer 1

due to the location and arrangement of the

parts of neurons and glial cells.

Question 2

Nervous tissue exists as

Answer 2

gray matter and

white matter.

Question 3

Gray matter consists

Answer 3

of groups of neuron cell bodies and their

dendrites, where there is very little myelin.

Question 4

In the CNS, gray matter on

Answer 4

surface of the brain is called the cortex,

Question 5

clusters of gray matter located

Answer 5

deeper within the brain are called nuclei.

Question 6

In the PNS, a cluster of neuron cell bodies is called

Answer 6

a ganglion

GANG-lee-on; pl. ganglia, a swelling or knot

Question 7

White matter consists of

Answer 7

bundles of parallel axons with their myelin

sheaths, which are whitish in color.

Question 8

White matter of the CNS forms

Answer 8

nerve tracts, or conduction pathways, which propagate action potentials from one
area of the CNS to another.

Question 9

White matter of the PNS consists of

Answer 9

bundles of

axons and associated connective tissue that form nerves.