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Neuroanatomy > Blood Supply of the CNS and CSF > Flashcards

Blood Supply of the CNS and CSF Flashcards

1
Q

What is the process that keeps blood flow in the CNS constant?

A

Autoregulation

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2
Q

Exchange through capillaries of the central nervous system is regulated by what?

A

Endothelial transport mechanisms

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3
Q

What does the anterior choroidal artery supply?

A

Optic tract and parts of the internal capsule

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4
Q

The anterior cerebral artery give rise to what artery?

A

Heubner artery

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5
Q

What does the Heubner artery supply?

A

Parts of the corpus striatum and anterior part of internal capsule

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6
Q

What does the middle cerebral artery supply?

A

Lateral surface of the frontal, parietal and temporal lobes

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7
Q

What supplies the geniculocalcarine tract?

A

Middle cerebral artery

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8
Q

What is the spinal cord supplied by?

A

Branches of the vertebral and radicular arteries

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9
Q

What is the largest branch of the vertebral artery?

A

Posterior inferior cerebellar artery

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10
Q

What supplies the lateral part of the medulla and much of the cerebellum?

A

Posterior inferior cerebellar artery

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11
Q

What are branches of the basilar artery?

A

Anterior inferior and superior cerebellar arteries

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12
Q

What artery has smaller branches that supply the pons and the labyrinth of the inner ear?

A

Basilar artery

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13
Q

What artery gives rise to the posterior choroidal artery?

A

Posterior cerebral artery

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14
Q

What connects to the posterior communicating artery?

A

Posterior cerebral artery

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15
Q

What supplies the internal structures of the cerebral hemispheres and diencephalon?

A

Central arteries

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16
Q

Aneurysms at sites of arterial bifurcation in and near the circle of Willis are common sources of?

A

Subarachnoid hemorrhage

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17
Q

Where do the superior cerebral veins drain into?

A

Superior saggiata sinus

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18
Q

Blood from the inferior surface of the brain is collected by?

A

Great cerebral vein

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19
Q

Where does the great cerebral vein drain into?

A

Straight sinus

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20
Q

The internal carotid artery is a terminal branch of?

A

Common carotid artery

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21
Q

What artery enters the middle cranial fossa?

A

Internal carotid artery

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22
Q

What space does the internal carotid artery enter?

A

Subarachnoid space

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23
Q

What are the four groups of central arteries?

A

Anteromedial group, Anterolateral group, Posterolateral group, Posteromedial group

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24
Q

What are the arteries of the anterolateral group referred to as?

A

Lenticulostriate or lateral striate arteries

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25
Q

What is the name of the medial striate artery?

A

Artery of Heubner

26
Q

What is the origin of the anteromedial group?

A

Anterior cerebral and anterior communicating arteries

27
Q

What does the anteromedial group supply?

A

Anterior hypothalamus and preoptic area

28
Q

What is the origin of the anterolateral group?

A

Middle cerebral artery

29
Q

What does the anterolateral group supply?

A

Head of caudate nucleus, putamen, internal capsule and lateral hypothalamus

30
Q

What is the origin of the posteromedial group?

A

Posterior cerebral and posterior communicating arteries

31
Q

What does the posteromedial group supply?

A

Thalamus and hypothalamus

32
Q

What is the origin of the posterolateral group?

A

Posterior cerebral artery lateral to midbrain

33
Q

What does the posterolateral group supply?

A

Thalamus and midbrain

34
Q

What are the three arteries that supply the cerebellum?

A

Posterior inferior cerebellar artery, Anterior inferior cerebellar artery and superior cerebellar artery

35
Q

What arteries come from the vertebral arteries?

A

Posterior inferior cerebellar artery

36
Q

What arteries come from the basilar artery?

A

Anterior inferior cerebellar artery and Superior cerebellar artery

37
Q

What supplies the midbrian?

A

Branches from the termination of the basilar artery and initial segment of the posterior cerebral artery

38
Q

What supplies the pons?

A

Pontine arteries

39
Q

What supplies the medulla?

A

Branches from anterior inferior cerebellar artery and posterior inferior cerebellar artery

40
Q

What branches supply the choroid plexus of the 4th ventricle?

A

Anterior inferior cerebellar artery and posterior inferior cerebellar artery

41
Q

What supplies the choroid plexus of the lateral and 3rd ventricles?

A

One anterior and two posterior choroidal arteries on each side

42
Q

Where does the dural venous sinuses drain into?

A

Internal jugular vein

43
Q

Where do superficial veins run in to?

A

Subarachnoid space

44
Q

What veins travel in the transverse fissure?

A

Great cerebral vein and terminal part of internal cerebral vein

45
Q

What are the three layers of meninges?

A

Dura mater, Arachnoid mater and Pia mater

46
Q

What is the dura mater?

A

Outer tough layer of connective tissue

47
Q

What is the arachnoid mater?

A

Thin layer apposed to the dura mater

48
Q

What is the pia mater?

A

Very thin inner layer apposed to the surface of the brain

49
Q

A layer of pia mater accompanies arteries penetrating into?

A

The brain

50
Q

What connects the arachnoid mater and pia mater?

A

Wispy cords of connective tissue

51
Q

What is the cerebrospinal-spinal fluid secreted by?

A

Specialised cells within the ventricular system of the brain

52
Q

What does the CSF circulate around?

A

The brain and spinal cord

53
Q

What is the path of the CSF fluid being circulated?

A

From the 4th ventricles to the subarachnoid space

54
Q

Where is the CSF reabsorbed?

A

Dural venous sinuses

55
Q

What structures allow CSF to be reabsorbed into the sinuses?

A

Arachnoid granulations

56
Q

What is the function of CSF?

A

Cushions the brain both internal and externally

57
Q

What does the choroid plexus in ventricles produce?

A

CSF

58
Q

What are the spaces called when the arachnoid departs from the pia where CSF fills?

A

Cisterns

59
Q

Where does the subarachnoid space end?

A

Level of S2

60
Q

Where does the spinal cord end?

A

Level of L2

Neuroanatomy (29 decks)

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