Ventricles and Major Vasculature Flashcards

1
Q

name the ventricles of the brain

A

lateral ventricles
3rd ventricle
4th ventricle

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2
Q

where is the 3rd ventricle located?

A

dorsal to diancephalon

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3
Q

what connects the 3rd ventricle to the 4th?

A

cerebral aqueduct

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4
Q

where is the 4th ventricle located?

A

dorsal to the pons/medulla

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5
Q

what connects the lateral ventricles to the 3rd ventricle?

A

foramen of monro

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6
Q

where is CSF produced?

A

choroid plexus of the ventricles of the brain

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7
Q

where does CSF flow?

A

in ventricles and the subarachnoid space

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8
Q

after the fourth ventricle where can CSF go?

A

into subarachnoid space or into the central canal of the spinal cord

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9
Q

what are the exit holes called in the fourth ventricle that enter into the subarachnoid space?

A

dorsal holes

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10
Q

where does CSF get reabsorbed?

A

into arachnoid granulations

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11
Q

how do we get hydrocephalus?

A

blockage of CSF and buildup in the ventricles of the brain

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12
Q

if blockage is in aqueduct, where does hydrocephalus occur>

A

in the lateral and 3rd ventricle only

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13
Q

the central sulcus divides what two main landmarks?

A

precentral gyrus and postcentral gyrus

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14
Q

the precentral gyrus is what?

A

primary motor cortex

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15
Q

the postcentral gyrus is what?

A

primary somatosensory cortex

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16
Q

the lateral sulcus divides what?

A

temporal lobe from rest of the brain

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17
Q

in the motor somatopy map, what is located most central?

A

toes to upper leg

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18
Q

in the motor somatopy map, what is located next to the legs?

A

arm motor movement

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19
Q

in the motor somatopy map, what is located next to the arms?

A

facial movements

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20
Q

in the motor somatopy map, what is located most lateral ?

A

tongue, swallowing

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21
Q

do motor and sensory somatopy maps match?

A

yes…so leg to arm to face to throat moving medial to lateral

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22
Q

what lies just anterior to the primary motor cortex?

A

motor association cortex

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23
Q

what lies just posterior to the primary somatosensory cortex?

A

somatosensory association area

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24
Q

what is Brocas area used for?

A

language production

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25
Q

where is brocas area located?

A

usually left hemisphere, frontal lobe

26
Q

what is wernickes area used for?

A

language understanding

27
Q

where is wernickes located?

A

temporal lobe close to the vision and hearing areas

28
Q

where do arteries and vein run along in the brain?

A

run in the subarachnoid space

29
Q

what type of blood vessel is in the BBB?

A

capillaries that have penetrated into the brain from the arteries in the subarachnoid space

30
Q

what pair or arteries is considered the anterior blood supply to the brain?

A

internal carotids

31
Q

what pair or arteries are considered the posterior blood supply to the brain?

A

vertebral arteries

32
Q

vertebral arteries are branches off of what?

A

subclavian arteries

33
Q

the left and right vertebral arteries come together to form what?

A

basilar artery

34
Q

the internal carotid has two branches in the brain…name them

A

anterior cerebral artery

middle cerebral artery

35
Q

the anterior cerebral has an artery…name it

A

anterior communicating

36
Q

what does the anterior communicating artery connect?

A

anterior cerebral arteries from left and right side

37
Q

middle cerebral artery has a branch…name it

A

posterior communicating

38
Q

what does the posterior communicating artery connect?

A

links the middle cerebrals on each side to the posterior cerebral arteries

39
Q

name the two branches of the basilar artery

A

posterior cerebral and superior cerebellar

40
Q

name the two branches of the superior cerebellar

A

pontine and anterior inferior cerebellar

41
Q

name the three branches of the vertebral artery

A

posterior inferior cerebellar
anterior spinal
posterior spinal

42
Q

the anterior and posterior spinal arteries are branches of what?

A

vertebral artery

43
Q

the superior cerebellar is a branch of what?

A

basilar artery

44
Q

the anteriro inferior cerebellar is a branch from what artery?

A

superior cerebellar

45
Q

the posterior inferior cerebellar is a branch from what artery?

A

vertebral artery

46
Q

the circle of willis is around what brain structure?

A

diencephalon

47
Q

the circle of willis consists of 6 vessels..name them

A

anterior, middle and posterior cerebral
internal carotid
anterior and posterior communicatings

48
Q

where does the anterior cerebral lie?

A

on the medial surface of the longitudinal fissure

49
Q

name two locations of cerebral hemisphere that anterior cerebral artery supplies

A

medial aspect of frontal lobe and parietal lobe

50
Q

the middle cerebral artery lies where?

A

lateral fissure between the frontal and temporal lobes

51
Q

name three specific locations the middle cerebral artery supplies

A

lateral parts of frontal, temporal and parietal lobes

52
Q

what are the main functions supplied by flow from the middle cerebral artery?

A

motor and sensory to upper extremity and face

brocas and wernickes areas (speech and receptive language respectively)

53
Q

what are the main functions supplied by the flow of the anterior cerebral artery?

A

motor and sensory of legs

54
Q

the middle cerebral arteries has a deep branch…name it

A

lenticulostriate arteries AKA deep penetrating arteries

55
Q

what do the deep penetrating arteries of the middle cerebral artery supply?

A

basal ganglia and internal capsule

56
Q

what two things are inside the internal capsule?

A

descending motor tract and ascending somatosensory tract

57
Q

where does the posterior cerebral artery lie?

A

on inferior surface of the temporal lobe

58
Q

what two locations does the posterior cerebral artery supply?

A

occipital lobe as a whole and part of temporal lobes

59
Q

what is the function of the area supplied by the posterior cerebral artery?

A

mainly vision

60
Q

the brainstem gets blood supply from what two original vessels?

A

basilar and vertebral

61
Q

the SC gets blood supply from what two main vessels? what vessel do these originate from?

A

anterior and posterior spinal vessels that originate from the vertebral artery