brain Flashcards

1
Q

the fissure that seperates the cerebral hemispheres is called

A

median longitudinal cerebral fissure

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2
Q

cerebral hemispheres consists of

A

outer grey matter
white matter
inner grey matter ( basal nuclei)
lateral ventricle

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3
Q

what are teh 3 surfaces of each cerebral hemispheres

A

medial , inferior , superolateral

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4
Q

cerebral hemispheres general appearnce

A

gyri folds
sulci and fissures
to increase the surfacd area

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5
Q

lobes of each cerebral hemisphere

A

frontal, parietal, temporal, occipital

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6
Q

central sulcus (main sulci)

A

betwee the frontal and parital lobes
it seperates teh primary motor cortex ( pre central gyrus) and teh primary somatosensory cortex ( post central gyrus)

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7
Q

parietooccipital sulcus

A

divides teh occipial and parital

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8
Q

lateral sulcus

A

divides teh temporal form the frontal and pariteal

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9
Q

calcrine sulcus

A

reaches teh occipital pole

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10
Q

cingulate gyrus journey

A

begins beneath teh anterior part of corpus callosum and contionues above it until it reaches its posteriro end

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11
Q

the cingulate gyrus lies between

A

callosal sulcus and teh cingulate sulcus

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12
Q

broadmann has how many regions

A

52

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13
Q

the three functional areas of the cortex

A

sensory, motot and asscoiation

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14
Q

sensory area description

A

primary sensory area ( post central gyrius)
secondary sensory area

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15
Q

motor area description

A

primary motor area ( precentral gyrus)
seconadary motor area ,supplementary motor area

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16
Q

association areas description

A

integrate information
sensatuons and relate to past experience
brain sends nerve impusles to motor areas to ellicit a response

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17
Q

frontal lobe functional areas

A

primary motor area, premotor area, frontal visual field, motor area of broca, prefrontal cortex

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18
Q

primary motor area descriotion

A

broadmans area number 4 , occupies teh precentral gyrus and functions in excecuting motor movement

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19
Q

premotor area descriptiom

A

broadmans area number 6 function skillful ovemnt or programming of movement

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20
Q

frontal eye field d

A

broadman area no 8
volunatry movemnet of the eye like scanning independent of visual stimuli

21
Q

prefrontal cortex

A

indivuals personality and deep feeling

22
Q

motor area of broca

A

broadmans area no 44 45
speech production

23
Q

pariteal lobe functional aeas

A

primary ans secobdary somatosensory area the somesthetic association area

24
Q

primary somatosensory area

A

broadman area 3,1,2, postcentral gyrus
somatic senstaion

25
secondary somatosensory area
recognizes tactile object and memory
26
somatoesthetic association area
broadman area 5 ,7 it relates objects to past sensory experinces
27
the body representation in teh motor cortex is charecterized by
contralatwral, proportional, inverted
28
occipital lobe functional area
primary and secondary visual area
29
primary visual area
broadmadn area 17 visual stimuli recognition
30
secondary visual area
broadman area 18,19 surronds teh primary visual area it allows us to recognize objects , faces based on the colr size and shape
31
temporal lobe functional areas
primary and secondaru auidotory area and sensory speech area of wernickes
32
primary audiotory area
broadmand area no 41,42 anteriro part low frequency sounds posterior part high frequency sounds functiosn awarenessof audiotory stimuli
33
seconadry audiotyory area
broadmadn area 22 interperetation of sounds with other sensory info
34
sensory speech area of wernickes
brioadman area 22,39,40 understanding of the written and spoken language enables you to read a sentence , undertand it and read it out loud
35
the taste area
situated in teh adjoining area of teh insula broadman area 43
36
expressive aphasia
destructive lesion to the brocas area pateient in able to understand but unable to respond
37
receptive aphasia
destructive lesion to the wernickes area patient is unable to understand but able to respond
38
global aphasia
destructive lesiosn to both speech areas
39
disorders of association areas
aphasia , agnoisia, apraxia
40
agnosia
in ability to recognize and identify objects using one or more of the senses
41
tactile agnoisa is also called
asterognosis
42
apraxia
the inability to excute volunatry motor movement despite being able to demostrate normal motor function
43
fibers of the white nmatter of the cerberal hemispheres
association prohjecrion amd commisurral
44
commissural fibers
commissural fibers : connect 2 similar areas in the hemispheres like the corpus callousum
45
projection fibers example
internal capsule
46
corpus callosum
the larghest commisure in the brain connects teh two hemispheres at teh bottom of the longtitudinal fissure divdes into body, genu, rostrum, splenium, septum pellucidum
47
projection fibers journey
passing to and from the brainstem to the entire cerebral cortex
48
internal capsule division
anteriro an dposteriro limb and genu