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MD4001 Anatomy > Brainstem tutorial > Flashcards

Flashcards in Brainstem tutorial Deck (44)
1

Which cranial nerves are found in the midbrain

3 and 4

2

which cranial nerves are found in the pons

5,6,7,8

3

which cranial nerves are found in the medulla

9,10,11,12

4

what is the function of the Edinger Westphal nucleus (3, occulomotor)

controls pupillary constriction and lens accomodation
parasympathetic

general visceral motor

5

what is the function of the occulomotor nucleus (3, occulomotor)

controls all extraocular eye muscles
motor

6

what is the function of the trochlear nucleus (4)

controls superior oblique muscles of the eye
motor

7

what is the function of the abducens nucleus (6)

lateral rectus muscles of the eye
motor

8

what is the function of the vestibulocochlear nucleus (8)

special sensory

balance and hearing, postural reflexes via the vestibulospinal tracts

located on the lateral side due to it being special sensory, in the pons/ medulla

9

in what disease can patients develop vestibulospinal tract disfunction (postural reflexes)

Parkinsons

10

what is the function of the trigeminal mesencephalic nucleus (sensory)

proprioception from the mouth

11

what is the function of the trigeminal motor nucleus

muscles of mastication

12

what is the function of the trigeminal pontine sensory nucleus

facial discriminating touch

13

what is the function of the trigeminal spinal nucleus

pain and temperature sensation from the face, back of tongue, pharynx, larynx and ear

14

what is the function of the facial nucleus

controls muscles of facial expression (motor)
located under the vestibulocochlear nucleus

15

what is the function of the hypoglossal nucleus

controls tongue muscles

16

what is the function of the nucleus ambiguus (motor, cn 9 and 10)

motor to pharynx and larynx

also contributes to cn9

17

what is the function of the salivatory (and lacrimal) nucleus (cn 7 and 9) (psymp)

controls lacrimal and nasal glands (7) and salivary glands (7 and 9)

18

what is the function of solitary nucleus (7, 9, 10, sensory)

taste (7, 9, 10)

carotid baroreceptors (9)

visceral afferent from pharynx, larynx, lungs, gut (10)

19

what is the function of the dorsal motor nucleus of the vagus (psymp)

secretory motor to lungs and gut, heart rate

20

what is special visceral motor/efferent

motor supply to muscles from pharyngeal arches

21

where is the Edinger westphal nucleus located (3, pupillary constriction)

midbrain, close to the midline due to motor

general visceral motor (psymp)

22

where is the trochlea nucleus located (superior oblique muscles of the eye)

near the midline, midbrain

somatic motor

23

where is abducent nucleus located (lateral rectus muscle of the eye)

pons, right next to the midline
somatic motor

24

where is the spinal accesory nucleus located

close to the midline, medulla

special visceral motor

25

where is the hypoglossal nucleus located (controls tongue muscles)

next to the midline, medulla

somatic motor

26

describe the layout of nuclei in the brainstem from medial to lateral

somatic motor
special visceral motor
general visceral psymp motor
general visceral psymp sensory
special visceral psymp sensory
somatic sensory
special sensory

27

where is the trigeminal motor nucleus located

pons, close to the midline
special visceral motor

28

where is the trigeminal motor nucleus located (muscles of mastication)

close to midline, pons

29

where is the trigeminal sensory nucleus located (faciali discriminating touch)

pons
close to the lateral side

30

where is the facial motor nucleus (muscles of facial expression), special visceral motor

close to the midline, in the pons

31

what nuclei are part of the facial nerve

motor nucleus, sup salivary, nucleus solitarus, sensory nuclues

32

what modality is the nucleus solitarius

general and special visceral sensory

33

where are the vagal nuclei

in the medulla

34

what non cranial nerve nuclei are found in the midbrain

medial geniculate, red nucleus, substantia nigra, sup colliculus, inf colliculus, reticular formation

35

what is the function of the medial geniculate nucleus (midbrain)

relay auditory stimuli to the cerebral cortex

36

what si the function of the red nucleus (midbrain)

motor coordination (extra pyramidal system)

37

what is the funciton of the substantia nigra (midbrain)

motor coordination (extra pyramidal system)

38

what is the function of the superior colliculus (midbrain)

eye movements in response to stimuli

39

what is the function of the inferior colliculus (midbrain)

head and upper body movements in response to stimuli

40

what is the function of the reticular formation (midbrain)

consciousness and cortical arousal

41

which non cranial nerve nuclei is found in the pons

reticulat formation

42

what is the function of the reticular formation (midbrain, medulla and pons)

link between cerebral cortex and cerebellum
consciousness and cortical arousal

43

what non cranial nerve nuclei are found in the medulla

olive
vital center
non vital center
reticular formation

44

what is the function of the oilve (medulla)

auditory control (sup)
movement control (inferior)