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Neuroscience II > Blood Supply of Brain and Spinal Cord > Flashcards

Blood Supply of Brain and Spinal Cord Flashcards

1
Q

Name the layers surrounding the brain and spinal cord from external to internal

A

Dura mater, arachnoid mater, pia mater

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2
Q

What structure is found between cerebral hemispheres?

A

Falx cerebri

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3
Q

Where is falx cerebri found?

A

Between cerebral hemispheres

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4
Q

What structure is found between cerebellar hemispheres?

A

Falx cerebelli

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5
Q

Where is falx cerebelli found?

A

Between cerebellar hemispheres

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6
Q

What structure is found between cerebral and cerebellar hemispheres?

A

Tentorium cerebelli

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7
Q

Where is tentorium cerebelli found?

A

Between cerebral and cerebellar hemispheres

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8
Q

The great cerebral vein of Galen will lead into the…

A

straight sinus

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9
Q

The straight sinus leads laterally into the…

A

transverse sinus

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10
Q

The internal carotid artery is closest to which sinus?

A

Cavernous sinus

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11
Q

The jugular foramen will lead into the…

A

sigmoid sinus

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12
Q

The sigmoid sinus is a continuation of the…

A

transverse sinus

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13
Q

The great cerebral vein of Galen wraps around the ___ and splits into ___ and ___

A

wraps around the thalamus and splits into choroid vein (medially) and thalamostriate vein (laterally)

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14
Q

The common carotid artery splits into ___ and ___

A

splits into external carotid artery and internal carotid artery

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15
Q

The external carotid artery supplies the…

A

face

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16
Q

The internal carotid artery supplies the…

A

brain

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17
Q

The internal thoracic artery comes off the…

A

subclavian artery

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18
Q

The vertebral artery comes off the…

A

subclavian artery

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19
Q

What is the circle of Willis?

A

The site of overlapping blood supply from two systems of arteries: the internal carotid and the vertebrobasilar

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20
Q

The internal carotid arteries arise from the common carotid arteries. Where do they enter the skull?

A

Carotid canals

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21
Q

After internal carotid arteries enter the skull through the carotid canals, which sinus will they traverse?

A

Cavernous sinus

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22
Q

After internal carotid arteries traverse the cavernous sinus, what will they divide into?

A

Anterior and middle cerebral arteries

23
Q

The vertebral arteries arise from the subclavian arteries and at the level of ___ join to form the ___.

A

at the level of the pons join to form the basilar artery

24
Q

The basilar artery divides into the two…

A

posterior cerebral arteries

25
Q

What do the posterior cerebral arteries supply?

A

Occipital lobe, inferior part of temporal lobe, thalamus, splenium of corpus callosum, cuneus/lingual

26
Q

The cuneus and lingual gyrus are supplied by…

A

the posterior cerebral arteries

27
Q

The thalami are supplied by…

A

the posterior cerebral arteries

28
Q

The posterior limb of the internal capsule is supplied by…

A

the anterior choroidal arteries

29
Q

The systems of internal carotid and vertebrobasilar arteries are connected by the ___ to form the circle of Willis

A

posterior and anterior communicating arteries

30
Q

Occlusion of circle of Willis causes…

A

no severe injury

31
Q

Recurrent artery of Heutner and lenticulostriate arteries make…

A

anterior perforated substance

32
Q

Posterior perforated substance is closest to…

A

posterior communicating artery

33
Q

CN III oculomotor lies between which arteries?

A

Superior cerebellar artery and posterior cerebral artery

34
Q

Where does the labyrinthine artery come from?

A

Either from long pontine or branch of anterior inferior cerebellar artery

35
Q

What does labyrinthine artery supply? What does it travel with?

A

Supplies inner ear and travels with CN VIII vestibulocochlear

36
Q

Pontine arteries come off of…

A

the basilar artery

37
Q

Posterior and anterior spinal arteries connect to the…

A

vertebral arteries

38
Q

Posterior inferior cerebellar arteries come off the…

A

vertebral arteries

39
Q

Anterior inferior cerebellar arteries come off the…

A

basilar artery

40
Q

The superior cerebellar arteries come off the…

A

basilar artery

41
Q

The anterior choroidal artery comes off the…

A

middle cerebral artery

42
Q

The recurrent artery of Heubner connects the ___ and ___

A

middle cerebral artery and anterior cerebral artery

43
Q

Inside the circle of Willis, what arteries can you see?

A

Internal carotid arteries

44
Q

Connecting the anterior cerebral arteries is which artery?

A

Anterior communicating artery

45
Q

The posterior communicating artery connects the ___ and ___

A

middle cerebral artery and posterior cerebral artery

46
Q

The posterior choroidal artery comes off the…

A

posterior cerebral artery

47
Q

What do the anterior cerebral arteries supply?

A

Medial and superior parts of the frontal lobe, and the anterior parietal lobe

48
Q

Which infarction is most common?

A

Middle cerebral artery infarction

49
Q

What do the middle cerebral arteries supply?

A

Lateral surface of the hemisphere/ lateral cerebral cortex:
* loop of Meyer
* Broca’s
* precentral and postcentral gyri

50
Q

The loop of Meyer is supplied by…

A

the middle cerebral arteries

51
Q

Broca’s area is supplied by…

A

the middle cerebral arteries

52
Q

The precentral gyrus is supplied by…

A

the middle cerebral arteries

53
Q

The genu of corpus callosum is supplied by…

A

the anterior cerebral arteries

54
Q

The paracentral lobule is supplied by…

A

the anterior cerebral arteries

Neuroscience II (9 decks)

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