Blood supply to the Brain (Yr1 Qs) Flashcards

1
Q

which of the following is formed from basilar artery:

anterior spinal artery
middle cerebral artery
posterior cerebral artery
posterior inferior cerebellar artery
anterior cerebral artery

A

which of the following is formed from basilar artery:

anterior spinal artery
middle cerebral artery
posterior cerebral artery
posterior inferior cerebellar artery
anterior cerebral artery

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2
Q

what is D?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

A

what is C?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
​internal carotid artery

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3
Q

what is A?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

A

what is A?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

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4
Q

what is E?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

A

what is E?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

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5
Q

what is C?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

A

what is C?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

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6
Q

what is B?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

A

what is B?

middle cerebral artery
basilar artery
posterior cerebral artery
anterior cerebral artery
internal carotid artery

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7
Q

draw the circle of willis xxx

A
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8
Q

Label A-C

A

A: anterior cerebral artery
B: middle cererbral artery
C: internal carotid artery

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9
Q

under normal circumstances, what are the anterior and posterior communicating arteries like?

A

closed !!

classic circle of willis is seen in ~1/3rd pop

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10
Q

label A-D [4]

A

A: vertebral artery
B: superior cerebellar artery
C: posterior cerebral artery
D: basilar artery

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11
Q

when does collateral circulation open? [1]

A

collateral circulation should only open when there is a pressure difference (increased pressure can open anterior / posterior communicating arteries)

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12
Q

what is most normal variant in cerebral arterial circle? [1]

A

what is most normal variant in cerebral arterial circle? [1]
one / both posterior communicating arteries are missing (e & f)

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13
Q

what are the main branches of the internal carotid artery? [4]

A
  1. opthalmic artery: orbit & retina. connects to external carotid artery
  2. posterior communicating: connext with carotid & vertebral artery system
  3. middle cerebral artery: connects to basal ganglia and lateral 2/3rds of cortex
  4. anterior cerebral artery: connects with medial side frontal & parietal lobes, anastamoses with MCA
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14
Q

which artery is a branch of the ICA that occurs in the cavernous sinus?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which artery is a branch of the ICA that occurs in the cavernous sinus?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

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15
Q

which of the following supplies the basal ganglia & lateral 2/3rd of the cortex?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which of the following supplies the basal ganglia & lateral 2/3rd of the cortex?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

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16
Q

which of the following supplies the medial side of frontal and parietal lobes?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which of the following supplies the medial side of frontal and parietal lobes?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

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17
Q

which of the following anastamoses with the MCA?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which of the following anastamoses with the MCA?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

18
Q

which of the following connects to the external carotid artery?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which of the following connects to the external carotid artery?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

19
Q

which of the following supplies the corpus callosum?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

A

which of the following supplies the corpus callosum?

middle cerebral artery
anterior cerebral artery
posterior communicating artery
menigeal branch
opthalmic artery

20
Q

what is A?

A

cavernous sinus

21
Q
A
22
Q

middle cerebral artery goes between which two brain lobes to get to lateral wall?

temporal & parietal
temporal and occiptal
temporal and frontal
parietal and occipital
occipital and cerebellum

A

middle cerebral artery goes between which two brain lobes to get to lateral wall?

temporal & parietal
temporal and occiptal
temporal and frontal
parietal and occipital
occipital and cerebellum

23
Q

which artery most commonly supplies Broca’s & Wernicke’s areas?

ACA
MCA
PCA
Basilar A
ICA

A

which artery most commonly supplies Broca’s & Wernicke’s areas?

ACA
MCA
PCA
Basilar A
​ICA

24
Q

which arteries supply 1-5?

A

1: anterior cerebral A
2: middle cerebral A
3: posteror cerebral A
4: anterior choroidal A
5: lenticulostriate (branch of MCA)

25
Q

describe the pathway of the posterior circualation of the brain?

A

vertebral:

  • has anterior spinal arteries and posterior spinal arteries (x2) going inferiorly
  • has PICA branching off to dorsal medulla of brainstem

turns into the basilar artery:
- has anterior inferior cerebellar artery (AICA) and superior cerebellar artery arching off

redivides at the superior cerebellar arteries and continues to **posterior cerebral arteries

  • **supplies the inferior and medial aspects of temporal and occipital cortex
  • thalamus
  • midbrain
  • anastamoses with MCA
26
Q

which artery provides blood to the pons?

PICA
AICA
superior cerebllar artery
pons
posterior cerebral artery

A

which artery provides blood to the pons?

PICA
AICA
superior cerebllar artery
pons (via pontine arteries)
​posterior cerebral artery

27
Q

which artery provides blood to the midbrain & thalamus

PICA
AICA
superior cerebllar artery
pons
​posterior cerebral artery

A

which artery provides blood to the midbrain & thalamus

PICA
AICA
superior cerebllar artery
pons
​posterior cerebral artery

28
Q
A
29
Q

which of the following is the vertebral artery?

A
B
C
D
E

A

which of the following is the vertebral artery?

A
B
C
D
E

30
Q

which of the following is the PICA?

A
B
C
D
E

A

which of the following is the PICA?

A
B
C
D
E

31
Q

which of the following is the anterior spinal artery?

A
B
C
D
E

A

which of the following is the anterior spinal artery?

A
B
C
D
E

32
Q

which of the following is the basilar artery?

A
B
C
D
E

A

which of the following is the basilar artery?

A
B
C
D
E

33
Q

which of the following is the AICA?

A
B
C
D
E

A

which of the following is the AICA?

A
B
C
D
E

34
Q

what do arachnoid granulations allow to occur? [1]

A

arachnoid granulations: allow CSF to flow into venous blood of sinuses but prevent backflow of blood into sub-arachnoid space

35
Q

which sinus do most cerebral veins drain into?

straight sinus
transverse sinus
superior saggital sinus
inferior saggital sinus
sigmoid sinus

A

which sinus do most cerebral veins drain into?

straight sinus
transverse sinus
superior saggital sinus
inferior saggital sinus
sigmoid sinus

36
Q

which of the following is the straight sinus?

A
B
C
D
E

A

which of the following is the straight sinus?

A
B
C
D
​E

37
Q

which of the following is the sigmoid sinus?

A
B
C
D
​E

A

which of the following is the sigmoid sinus?

A
B
C
D
​E

38
Q

which of the following is the superior sagittal sinus?

A
B
C
D
​E

A

which of the following is the superior sagittal sinus?

A
B
C
D
​E

39
Q

which of the following is the transverse sinus?

A
B
C
D
​E

A

which of the following is the transverse sinus?

A
B
C
D
​E

40
Q

which of the following is the inferior sagittal sinus?

A
B
C
D
​E

A

which of the following is the inferior sagittal sinus?

A
B
C
D
​E