Cranial Nerve Nuclei function

Question 1

What does GSA stand for?

Answer 1

general somatic afferent

(neurons carrying touch and proprioceptive info)

Question 2

What CN have GSA neurons?

Answer 2

5, 7, 9 and 10

Question 3

Cranial nerve GSA neurons are headed to what structure in the brainstem?

Answer 3

spinal trigeminal nuclei and tract

Question 4

What does SSA stand for?

Answer 4

Special Somatic Afferent

(special senses)

Question 5

what CN have SSA neurons?

Answer 5

2 and 8

Question 6

what does GVA stand for?

Answer 6

general visceral afferent

(sensory info from visceral like carotid baroreceptors and chemoreceptors)

Question 7

What CN havae GVA neurons?

Answer 7

9 and 10

Question 8

What does SVA stand for?

Answer 8

Special Visceral Afferent

(carrying sensory info for taste)

Question 9

What CN have SVA neurons?

Answer 9

7, 9, and 10

Question 10

where are all SVA neurons heading?

Answer 10

Solitary nucleus in the medulla

Question 11

what does GSE stand for?

Answer 11

General Somatic Efferent

Question 12

What CN have GSE neurons?

Answer 12

3, 4, 6, and 12

(the cranial nerves that are soley have motor function)

Question 13

what does SVE stand for?

Answer 13

Special Visceral Efferent

(these are special because they arise from the brachial/pharangeal arches during development)

Question 14

What CN have SVE neurons?

Answer 14

5, 7, 9, 10 and 11

Question 15

Where are the SVE neurons of CN 9 and 10 coming from?

Answer 15

nucleus ambiguus

(swallowing reflex)

Question 16

what does GVE stand for?

Answer 16

general visceral efferent

(parasympathetic fibers)

Question 17

what CN have GVE neurons?

Answer 17

3, 7, 9 and 10

Question 18

Match the GVE neurons with their parasympathetic destination/function

Answer 18

CN 3 - papillary reflex

CN 7 - salivary and lacrimal glands

CN 9 - parotid gland

CN 10 - viscera