cn nuclei

Question 1

oculomotor nucleus

location
CN
signal type, function

Answer 1

medial midbrain
CN 3
motor- eye movement

Question 2

Edinger-Westphal nucleus

location
CN
signal type
function

Answer 2

medial midbrain, dorsal to oculomotor
CN 3
special efferent- parasympathetic preganglionic input to ciliary ganglion
pupil constriction/lens

Question 3

trochlear nucleus

location
CN
signal type + muscle

Answer 3

midbrain at inferior colliculus, below oculomotor
CN 4
motor- superior oblique m.

Question 4

Trigeminal motor nucleus

location
CN
signal type + muscles

Answer 4

midpons dorsal to principal sensory
CN 5
motor- muscles of mastication, tensor veli palatini m.

Question 5

Trigeminal sensory nucleus

location
CN
signal type for each of the 3 locations

Answer 5

mesencephalon, pons, spinal
CN 5, 7, 9, 10, 11
sensory-
-mesencephalic = proprioception of mastication mm.
-principal = sensory from face
-spinal = face sensory + reflexes

Question 6

abducens nucleus

location
CN
signal type + muscle

Answer 6

inferior dorsal midline of the pons
CN 6
motor- lateral rectus m.

Question 7

facial motor nucleus

location
CN
signal type + muscle

Answer 7

inferior pons
CN 7
motor- facial expression and stapedius m.

Question 8

superior salivatory nucleus

location
CN
signal type

Answer 8

pons, just above facial motor
CN 7
special efferent- parasympathetic preganglionic to submandibular + sublingual glands (via submandibular ganglion)

Question 9

inferior salivatory nucleus

location
CN
signal type

Answer 9

pons just above pontomedullary jxn
CN 9
special efferent- parasympathetic preganglionic to parotid gland (via otic ganglion)

Question 10

solitary nucleus

location
CN
signal type

Answer 10

dorsal medulla
CN 7, 9, 10
special afferent- taste, chemoreceptors, paroreceptors

Question 11

vestibular nucleus

location
CN
signal type

Answer 11

pons/medulla
CN 8
special afferent- equilibrium

Question 12

cochlear nucleus

location
CN
signal type

Answer 12

medulla
CN 8
special afferent- sound

Question 13

nucleus ambiguus nucleus

location
CN
signal type (function + neuron type)

Answer 13

medulla
CN 9, 10, 11
motor- swallowing, speech
-parasympathetic- cardiac regulation

Question 14

dorsal motor nucleus

location
CN
signal type

Answer 14

medulla
CN 10
parasympathetics to GI tract

Question 15

spinal accessory nucleus

location
CN
signal type + muscles

Answer 15

spinal cord (C1-C5)
CN 11
motor- SCM m. and trapezius m.

Question 16

hypoglossal nucleus

location
CN
signal type

Answer 16

medulla
CN 12
motor- tongue movement

Question 17

oculomotor n. (CN 3) uses what brainstem nuclei

Answer 17

oculomotor
Edinger-Westphal

Question 18

trochlear n. (CN 4) uses what brainstem nuclei

Answer 18

trochlear

Question 19

trigeminal n. (CN 5) uses what brainstem nuclei

Answer 19

trigeminal motor
trigeminal sensory (mesencephalic, principal, spinal)

Question 20

abducens n. (CN 6) uses what brainstem nuclei

Answer 20

abducens

Question 21

facial n. (CN 7) uses what brainstem nuclei

Answer 21

facial motor
superior salivatory
solitary
trigeminal sensory

Question 22

vestibulocochlear n. (CN 8) uses what brainstem nuclei

Answer 22

vestibular
cochlear

Question 23

glossopharyngeal n. (CN 9) uses what brainstem nuclei

Answer 23

nucleus ambiguus
inferior salivatory
solitary
trigeminal sensory

Question 24

vagus n. (CN 10) uses what brainstem nuclei

Answer 24

nucleus ambiguus
dorsal motor nucleus
solitary
trigeminal sensory

Question 25

accessory n. (CN 11) uses what brainstem nuclei

Answer 25

spinal accessory nucleus ambiguus trigeminal sensory

Question 26

hypoglossal n. (CN 12) uses what brainstem nuclei

Answer 26

hypoglossal

Question 27

parasympathetic ganglia for oculomotor n. (CN 3)

Answer 27

ciliary ganglion

Question 28

parasympathetic ganglia for facial n. (CN 7)

Answer 28

pterygopalatine ganglion submandibular ganglion

Question 29

parasympathetic ganglia for glossopharyngeal n. (CN 9)

Answer 29

otic ganglion

Question 30

parasympathetic ganglia for vagus n. (CN 10)

Answer 30

many, unnamed

Question 31

sensory ganglia for trigeminal n. (CN 5)

Answer 31

trigeminal (or semilunar) ganglion

Question 32

sensory ganglia for facial n. (CN 7)

Answer 32

geniculate ganglion

Question 33

sensory ganglia for vestibulocochlear n. (CN 8)

Answer 33

vestibular ganglion spiral ( or cochlear) ganglion

Question 34

sensory ganglia for glossopharyngeal n. (CN 9)

Answer 34

superior glossopharyngeal ganglion inferior glossopharyngeal ganglion

Question 35

sensory ganglia for vagus n. (CN 10)

Answer 35

superior vagal ganglion inferior vagal ganglion