13.3

Question 1

nerve

Answer 1

cordlike organ of PNS

Question 2

connective tissue coverings:

Answer 2

1. endoneurium
   loose connective tissue
2. perineurium
   coarse connective tissue thar bundles fibers
   into fascicle
3. epineurium
   tough fibrous sheath around all fascicles
   form the nerve

Question 3

mixed nerves

Answer 3

contain both sensory and motor fiibers

Question 4

sensory nerves

Answer 4

impulse only toward CNS

Question 5

motor nerves

Answer 5

impulses only away from CNS

Question 6

ganglia

Answer 6

contain neuron cell bodies associated in nerves in PNS

Question 7

ganglia

Answer 7

contain neuron cell bodies associated in nerves in PNS
- afferent nerve fibers contain cell bodies of
sensory neurons
- efferent verve fibers contain autonomic motor
neurons

Question 8

mature neurons are AMOTOTIC

Answer 8

most CNS fibers never regenerate.