Perph NS - Somatic, spinal nerves, cranial nerves

Question 1

Somatic

Answer 1

involved in transmitting sensory and motor information to and from brain

Question 2

Spinal nerves

Answer 2

cell bodies of afferent and efferent neurons

Question 3

(Spinal nerves) Cell bodies of afferent neurons

Answer 3

axons transmitting sensory info from somatosensory receptors to spinal cord - are located outside CNS in dorsal root ganglion (except visual) and enter spinal cord thru dorsal root

Question 4

(Spinal nerves) Cell bodies of efferent neurons

Answer 4

axons transmitting info from brain to muscles and glands – are located in the gray matter of spinal cord and exit spinal cord thru ventral root

Question 5

Cranial nerves

Answer 5

1. 12 pair of nerves – R & L – exit brain on ventral surface of brain
2. control motor and sensory functions of head and neck except #10 Vegas nerve which innervates visceral organs