Exam 3

Question 1

How many cranial nerves are there

Answer 1

12

Question 2

Cranial nerve I

Answer 2

olfactory: smell

Question 3

Cranial Nerve II

Answer 3

optic; vision

Question 4

Droopy eyelid and double vision can result from injury to the ___ nerve

Answer 4

oculomotor

Question 5

Cranial Nerve III

Answer 5

Oculomotor

Question 6

What is the purpose of the oculomotor nerve

Answer 6

controls eye muscles, pupil size, and eye shape

Question 7

What is cranial nerve IV

Answer 7

trochlear

Question 8

What does the trochlear nerve do

Answer 8

controls one eye muscle

Question 9

What is cranial nerve V

Answer 9

trigeminal

Question 10

What does the trigeminal nerve do

Answer 10

greatest sensory function

Question 11

the autonomic nervous system consists of:

Answer 11

pre and post ganglionic neurons; and target organs

Question 12

innervation of target organs is typically _______

Answer 12

paired (dual innervation)

Question 13

where is the preganglionic neuron in the sympathetic division?

Answer 13

originates in CNS, T1-L2

Question 14

What are the parts of the post ganglionic neuron in the sympathetic division?

Answer 14

the sympathetic chain, collateral, adrenal

Question 15

sympathetic chain ganglia

Answer 15

directly adjacent to the spinal cord on both sides; where most of the postganglionic fibers are; insert into organs/gland of head, heart, and lungs

Question 16

Collateral Ganglia

Answer 16

ganglia found in the abdominal cavity; target organs: stomach, duodenum, pancreas, liver, kidney, colon

Question 17

adrenal medulla

Answer 17

a modified sympathetic ganglion

Question 18

the alpha 1 adrenergic receptor is what type of G coupled protein

Answer 18

Gq

Question 19

The Gq coupled receptor acts on

Answer 19

IP3, increasing calcium, activating MLCK