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Neuro > lectures 1/2 > Flashcards

lectures 1/2 Flashcards

1
Q

ROD inner segment

A

has cell nucleus and mitochondria

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2
Q

ROD outer segment

A

light sensitive rhodospin

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3
Q

night vision?

A

ROD

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4
Q

CONE inner segment

A

cell nucleus and mitochondria

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5
Q

Cone outer segment

A

light sensitive lodospin

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6
Q

colours?

A

cone

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7
Q

refraction

A

at the cornea / lens

power at cornea is greater, but lens can change its shape

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8
Q

greatest visual acuity

A

central fovea

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9
Q

optic disc

A

emerging retinal arteries

blind spot

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10
Q

fovea has

A

only cones

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11
Q

more cones where

A

in central retina

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12
Q

more rods in

A

peripheral retina (movement)

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13
Q

Rhodospin Rods or cones

A

rods

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14
Q

iodopsin rods or cones

A

cones

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15
Q

left visual field projects to

A

right cortex

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16
Q

thalamus contains

A

lateral geniculate nucleus

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17
Q

dorsal stream

A

to parietal
orient
where/how am I

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18
Q

ventral stream

A

to temporal

what, object recongition

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19
Q

adducting eye does what

A

depresses eyeball

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20
Q

adbucted eye does what

A

intorsion of eyeball

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21
Q

head tilted to left, wheres right n left eye

A

right eye extorted inferior oblique

left eye intorted superior oblique

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22
Q

motor cranial nerve receives

A

input from primary motor cortex via corticobulbar tract

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23
Q

eye controlled by

A

frontal eye fields

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24
Q

ascending MLF

A

connects MLF and occculmotor

VOR

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25
Q

deciding MLF

A

medial vestibulospinal tract

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26
Q

types of volitional saccades

A

anti saccade
memory
predictive

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27
Q

what happens in superior colliculus

A

from retina goes through visual to motor layer

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28
Q

vertical gaze

A

coronation of CNIII and IV

29
Q

vertical gaze centre goes were

A

CN III (to superior n inferior rectus) and IV *(S0)

30
Q

what coordinates accommodation

A

pretectal area

31
Q

what sends projections to ciliary mm

A

dinger westphal

32
Q

SVE glosso

A

pharyngeal mm

33
Q

GVE glosso

A

parotid gland

34
Q

GVA glosso

A

gag reflex

35
Q

SVA glosso

A

posterior 1/3 tongue

36
Q

GSA glosso

A

pharynx, posterior oral cavity

37
Q 
SVE
GVE
GVA
SVA
GSA

nucleus types glosso

A 
ambiguus
inferior salivary
solitary
solitary
solitary
38
Q

SVE vagus

A

pharyngeal mm

39
Q

GVE vagus

A

thoracic / ab larynx

40
Q

GVA vagus

A

thoracic / ab / aortic arch

41
Q

GSA vagus

A

meninges, pharynx, larynx

42
Q

GVE
GVA
SVA
GSA

vagus nucleus

A

ambiguous / dorsal
solitary
ambiguus
spinal

43
Q

corticobublar tract for trap LMN do what

A

cross over

44
Q

corticobublar tract for SCM LMN do what

A

stay on same side

45
Q

CN IX X Xi exit

A

jugular foramen

46
Q

hypoglossal nerve

A

CN XII

intrinsic mm tongue

47
Q

hypoglossal

UMN projections to LMN in brainstem are ____ EXCEPT for ____

A

bilateral

LMN to genioglossus

48
Q

what protrudes tongue

A

genioglossus

49
Q

reticular formation
lat zone
med zone

A

afferent

efferent

50
Q

substance nigra

A

control of movement

51
Q

ventral tenemental area

A

projects to prefrontal cortex

limbic structures

52
Q

noradrenergic signalling

A

projects to thalamus / forebrain

53
Q

serotonergic signalling

A

projects to thalamus / cortex, basal ganglia, brainstem

54
Q

acetylcholine

A

projects to thalamus / cortex

tegmentum of pons

55
Q

histamine

A

projects to thalamus / cortex

tegmentum of pons

arousal alertness

56
Q

petrous part of temporal bone

A

cochlea

labyrinth

57
Q

where peri vs endo

A

peri is between bony an membranous labyrinth

epi is within membranous laby

58
Q

transducer

A

hair cell

59
Q

crista

A

ridge in ampulla where hair cells are

60
Q

anterior - posterior movement

A

utricle saccades

61
Q

medio lateral movemets

A

utricle

62
Q

saculle

A

superior inferior movement

63
Q

medial vestibular nuclei

A

rotational (semi circular canals)

64
Q

lateral vestibular nuclei

A

liner (otolith)

65
Q

maintenance of posture

A

vestibulospinal reflex

lateral vestibuospinal tract

66
Q

stabilization of head

A

vestibulcervical reflex

medial vestibulospinal tract

67
Q

Nystagmus

A

acceleration of head to left
VOR moves eyes right
Resets LEFT

(NYSTAGMUS)

68
Q

vestibular nuclei not working what happens

A

that eye won’t move

Neuro (25 decks)

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