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Flashcards in Brain Stem Deck (62)
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1

motor CN exit point

midline

2

mixed CN exit point

lateral

3

rostral pons lesions --> which CN

V

4

caudal pons lesions affect...

may only affect VI, VII, VIII

5

CST lesion in BS Sx

(UMN above decussation)
spastic weakness contra and below

6

ML lesion in BS Sx

(2nd neuron)
loss of touch, vibration contra and below

7

STT lesion in BS Sx

(crossed in spinal section)
pain/temp loss contra and below

8

DHF lesion in BS Sx

ipsilateral central horner's syndrome

9

sulcus limitans

line btwn motor and sensory in spinal cord and brain stem

10

neural tube to brain stem orientation

NT: sensory = dorsal; motor = ventral
BS: sensory = lateral; motor = medial

11

motor nuclei in midbrain

oculomotor
edinger westphal
trochlear

12

sensory nuc in midbrain

mesencephalic nuc of V

13

motor nuclei in pons

abducens
superior salivitory
motor trigeminal
motor facial

14

sensory nuc in pons

principle sensory nuc of V
spinal trigeminal

15

motor nuc in medulla

hypoglossal
inferior salivatory nuc
dorsal motor nuc
nuc ambiguus

16

sensory nuc in medulla

solitary
vestibular
cochlear
spinal trigeminal

17

most medial motor nucs

oculomotor (III)
trochlear (IV)
abducens (VI)
hypoglossal (XII)

18

most medial motor nuc (fxn - broad)

skeletal muscle
(cell bodies of LMNs)

19

most medial motor nuc axon location

axons exit same section

20

oculomotor path/exit

nuc
ant and medial
exit midbrain
ipsilateral

21

trochlear path/exit

nuc
go around cerebral aquaduct
cross at troch decussation
exit posterior medial midbrain
contralateral

22

abducens path/exit

nuc
ant medial
exit pons
ipsilateral

23

hypoglossal path/exit

nuc
go ant
exit medulla
ipsilateral

24

medial longitudinal fasciculus

connect oculomotor nuc and abducens nuc for vestibular system

25

most medial motor nuc (fxn - specific)

III (adduct eye, raise eyelid)
IV (depress, abduct, intort eye)
VI (abduct eye)
XII (move tongue)

26

motor nucs in between medial and lateral (2nd vertical row)

nuc of edinger westphal (III)
superior salivatory nuc (VII)
inferior salivatory nuc (IX)
dorsal motor nuc of X

27

motor nucs in between medial and lateral (fxn - broad)

parasympathetic
preganglionic

28

motor nucs in between medial and lateral (fxn - specific)

NucEW III (pupil constriction, near response)
SupSalv VII (lacrimal, salivary, submandibular)
InfSalv (parotid)
DorMot (gut)

29

most lateral motor nucs

motor nuc of V
motor nuc of VII
nuc ambiguus (IX, X*)

30

most lateral motor nuc (fxn - broad)

pharyngeal arch motor
skeletal LMNs