General CNS Review Flashcards Preview

PNS > General CNS Review > Flashcards

Flashcards in General CNS Review Deck (20)
Loading flashcards...
1

What is included in the CNS?

brain and spinal cord

2

how many cranial nerves exist?

24 nerves or 12 pairs

3

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

False; PNS structures

4

How many spinal nerves are in the CNS

zero

5

How many spinal nerves are in the PNS

31 pairs or 62 total

6

How are spinal nerves attached to the spinal cord?

by ventral and dorsal rootlets

7

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

dorsal root ganglion or spinal ganglion

8

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

True

9

What are the two functional subdivisions of the nervous system?

somatic and visceral

10

What kind of info is carried by afferents?

sensory

11

What kind of info is carried by efferents?

motor

12

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

sympathetic and parasympathetic

13

Which visceral division is considered adrenergic?

sympathetic

14

Which visceral division is considered cholinergic?

parasympathetic

15

Which visceral division supplies pelvic splanchnic nerves?

parasympathetic

16

Which visceral division is associated more with fight or flight?

sympathetic

17

Which visceral division has fewer blood vessels?

parasympathetics

18

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

sympathetics

19

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

parasympathetics

20

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

True