nervous system: cranial nerves

Question 1

how many pars of cranial nerves do humans have?

Answer 1

12 pairs

Question 2

can cranial nerves be both sensory and motor?

Answer 2

yes

Question 3

motor and sensory neurons can be divided as either?

Answer 3

somatic or visceral

Question 4

somatic

Answer 4

skeletal muscles, skin receptors, etc

Question 5

visceral

Answer 5

smooth muscles, glands, chemoreceptors etc

Question 6

sensory neurons can further be subdivided as?

Answer 6

general or special sensory

Question 7

general

Answer 7

not associated with sense organs (skin)

Question 8

specialized

Answer 8

associated with sense organs (eyes, ears, nasal passage, tongue)

Question 9

what are the types of sensory neurons in the PNS nerves?

Answer 9

somatic sensory neurons and visceral sensory neurons

Question 10

what are the types of motor neurons in the PNS nerves?

Answer 10

somatic motor neurons and visceral motor neurons

Question 11

somatic sensory neurons

Answer 11

uses both general and special sensory (ex. general cutaneous receptors, proprioceptors, vision, hearing, equilibrium etc.)

Question 12

visceral sensory neurons

Answer 12

uses both general and special sensory (ex. stretch receptors of smooth muscle, chemoreceptors, taste, smell etc.)

Question 13

somatic motor neurons

Answer 13

supplies/innervates skeletal (striated) muscles which are voluntary

Question 14

visceral motor neurons

Answer 14

Innervates smooth muscle, cardiac muscle and glands which are involuntary (part of the parasympathetic nervous system)