General CNS Review

Question 1

What is included in the CNS?

Answer 1

brain and spinal cord

Question 2

how many cranial nerves exist?

Answer 2

24 nerves or 12 pairs

Question 3

T/F: cranial nerve are part of the CNS.

Answer 3

False; PNS structures

Question 4

How many spinal nerves are in the CNS

Answer 4

zero

Question 5

How many spinal nerves are in the PNS

Answer 5

31 pairs or 62 total

Question 6

How are spinal nerves attached to the spinal cord?

Answer 6

by ventral and dorsal rootlets

Question 7

What are the two names for the ganglion contained in all dorsal roots of spinal nerves?

Answer 7

dorsal root ganglion or spinal ganglion

Question 8

T/F: each spinal nerve splits into a ventral primary ramus AND a dorsal primary ramus

Answer 8

True

Question 9

What are the two functional subdivisions of the nervous system?

Answer 9

somatic and visceral

Question 10

What kind of info is carried by afferents?

Answer 10

sensory

Question 11

What kind of info is carried by efferents?

Answer 11

motor

Question 12

What are the divisions of the visceral subdivision of the Nervous System?

Answer 12

sympathetic and parasympathetic

Question 13

Which visceral division is considered adrenergic?

Answer 13

sympathetic

Question 14

Which visceral division is considered cholinergic?

Answer 14

parasympathetic

Question 15

Which visceral division supplies pelvic splanchnic nerves?

Answer 15

parasympathetic

Question 16

Which visceral division is associated more with fight or flight?

Answer 16

sympathetic

Question 17

Which visceral division has fewer blood vessels?

Answer 17

parasympathetics

Question 18

Which visceral division has long postganglionic fibers and short preganglionic fibers?

Answer 18

sympathetics

Question 19

Which visceral division has long preganglionic fibers and short postganglionic fibers?

Answer 19

parasympathetics

Question 20

T/F: parasympathetic division supplies essentially the same organs as sympathetic.

Answer 20

True