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Flashcards in Neuro Deck (42):
1

Hypothalamus (HTM) - area postrema does?

responds to emetics

2

HTM - OVLT functions?

senses changes in osmolarity

3

supraoptic nucleus secretes

ADH

4

paraventricular nucleus secretes

oxytocin

5

lateral area HTM does?

HUNGER; destruction --> anorexia
inhib by leptin
prod hypocretin-1, hypocretin-2 --> deficiency of = narcolepsy w/ cataplexy; function to promote wakefulness and inhibit REM sleep-related phenomena

6

ventromedial area HTM does?

SATIETY; destruction (craniopharyngioma) --> hyperphagia
stim by leptin

7

Anterior HTM does?

cooling, parasympathetic

8

posterior HTM does?

heating, sympathetic

9

suprachiasmatic nucleus does?

circadian rhythm

10

intracranial calcified cystic mass is probably?

craniopharyngioma

11

symptoms of normal pressure hydrocephalus?

urinary incontinence
ataxia
cognitive dysfunction

via distortion of corona radiata fibers

"wet, wacky, wobbly"

12

lateral --> 3rd ventricle via?

interventricular foramina of Monro

13

3rd --> 4th ventricle via?

cerebral aqueduct of Sylvius

14

4th --> subarachnoid space via?

lateral - foramina of Lushka
medial - foramina of Magendie

drains to sup sagittal sinus

15

what is seen in stenosis of the aqueduct of Sylvius?

paralysis of upward gaze

16

MRI shows posterior globe flattening in?

pseudotumor cerebri

17

headache caused by nonmalig arterial HTN

occipital morning headaches

18

cluster headaches vs. trigeminal neuralgia?

cluster HA = >15 mins
TN = "electric pain"; <1min

19

what exits via cribriform plate

CN I

20

what exits via optic canal

CN II
ophthalmic artery
central retinal vein

21

what exits via superior orbital fissure

CN III, IV, V1 (ophthalmic), VI
ophthalmic vein
sympathetic fibers

22

what exits via foramen rotundum

CN V2 (maxillary)

23

what exits via foramen ovale

CN V3 (mandibular)

24

what exits via foramen spinosum

middle meningeal artery

25

what exits via internal auditory meatus

CN VII, VIII

26

what exits via stylomastoid foramen

CN VII

27

what exits via jugular foramen

CN IX, X, XI
jugular vein

28

what exits via hypoglossal canal

CN XII

29

what exits via foramen magnum

spinal roots of CN XI
brain stem
vertebral arteries

30

CN nuclei are located where?

in tegmentum portion of brain stem (b/w dorsal/ventral portions)

lateral nuclei = sensory (alar plate)
medial nuclei - motor (basal plate)

31

midbrain contains what nuclei?

CN III, IV

32

pons contains what nuclei?

CN V, VI, VII, VIII

33

medulla contains what nuclei?

CN IX, X, XII

34

spinal cord contains what nuclei?

CN XI

35

nucleus solitarius responsible for (and CN)?

visceral sensory info (ex. taste, baroreceptors, gut distention)

CN VII, IX, X

36

nucleus ambiguus responsible for (and CN)?

motor innerv of pharynx, larynx, upper esophagus (ex. swallowing, palate elevation)

CN IX, X

37

dorsal motor nucleus responsible for (and CN)?

sends autonomic (parasymp) fibers to heart, lungs, upper GI

CN X

38

cavernous sinus contains?

CN III, IV, V1, V2, VI + postgang sympath fibers
cavernous portion of ICA

39

excitatory NT involved in pain

substance P

40

triad of Multiple sclerosis

scanning speech
intention tremors (incontinence, intranuclear ophthalmoplegia)
nystagmus

also, optic neuritis

41

triad of Kluver-Bucy synd

hyperorality
hypersexuality
disinhibited behavior

42

first area damaged by global cerebral ischemia

hippocampus