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Med Neuro Block 1 > Arterial Supply > Flashcards

Arterial Supply Flashcards

0
Q

What are the long/circumferential branches of the internal carotid artery?

A

MCA

ACA

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1
Q

What connects the internal carotid artery and vertebral arteries?

A

Circle of Willis

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2
Q

What are the long/circumferential branches of the ACA?

A

cortical branches to the medial aspect of frontal and parietal lobes
arteries to corpus callosum

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3
Q

What are the long/circumferential branches of the MCA?

A

cortical branches to frontal, parietal and temporal lobes

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4
Q

What are the long/circumferential branches of the vertebral a.?

A

posterior inferior cerebellar a.

posterior spinal a.

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5
Q

What are the long/circumferential branches of the basilar a.?

A

Superior cerebellar a.
Pontine arteries (long)
Anterior inferior cerebellar a.

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6
Q

What are the short/penetrating branches of the internal carotid a.?

A

posterior communicating a.

anterior choroidal a.

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7
Q

What are the short/penetrating branches of the ACA?

A

medial striate a./recurrent a. of Huebner

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8
Q

What are the short/penetrating branches of the MCA?

A

lenticulostriate aa.

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9
Q

What are the short/penetrating branches of the vertebral a.?

A

anterior spinal

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10
Q

What are the short/penetrating branches of the basilar a.?

A

pontine aa. (short)

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11
Q

What are the short/penetrating branches of the posterior cerebral a.?

A

posterior choroidal a.

arteries to thalamus

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12
Q

What are the parts of the internal carotid a.?

A 
cervical part (C1)
petrous part (C2)
cavernous part (C3)
Supraclinoid/Intracranial/Cerebral part (C4)
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13
Q

What part of the internal carotid a. pierces the dura mater?

A

C4

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14
Q

What are the branches of C4 of the internal carotid a.?

A

opthalmic arteries
PComm aa.
Anterior choroidal aa.

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15
Q

What supplies the orbit and optic n.?

A

opthalmic arteries

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16
Q

What anastomoses with the post. cerebral aa.?

A

PComm aa.

17
Q

What supplies the deep cortical structures?

A

ant. choroidal aa.

18
Q

Where is the ACA located?

A

longitudinal fissure

19
Q

What links the 2 ACAs?

A

AComm a.

20
Q

What does the ACA supply?

A

cingulate gyrus
optic chiasm
medial aspect of the frontal and parietal lobes

21
Q

What are signs and symptoms of an ACA infarct?

A

Behaviour changes (frontal lobe)
Contralateral leg and foot weakness (precentral gyrus)
Contralateral leg and foot sensory loss (postcentral gyrus)

22
Q

Which is the larger of the two branches of the internal carotid a.?

A

MCA

23
Q

What artery can be found in the lateral sulcus (Sylvian fissure)?

A

MCA

24
Q

What arteries supply the basal ganglia and internal capsule? What are these arteries branches of?

A

lenticulostriate aa.; MCA

25
Q

What does the superior division of the MCA supply?

A

lat. surface of the frontal lobe

ant. portion of the parietal lobe

26
Q

What does the inferior division of the MCA supply?

A

med. and lat. temporal lobe, temporal pole and post. portions of the parietal lobe

27
Q

What is a sign/symptom for a right superior MCA infarct?

A

Weakness and/or sensory loss of the lt. side

28
Q

What is a sign/symptom for a left superior MCA infarct?

A

Weakness and/or sensory loss of rt. side

Broca’s aphasia (non-fluent speech)

29
Q

What is a sign/symptom for a right inferior MCA infarct?

A

sensory loss of lt. face, hand and arm

lt. hemineglect

30
Q

What is a sign/symptom for a left inferior MCA infarct?

A

sensory loss from rt. face, hand and arm

Wernicke’s aphasia (non-comprehension of speech)

31
Q

Where do the vertebral aa. branch from?

A

subclavian aa.

32
Q

What do the vertebral aa. pass through?

A

transverse foramina of the cervical vertebrae

enter the brain thru the foramen magnum

33
Q

What do the vertebral aa. anastomose to form?

A

basilar a.

34
Q

What supplies the ant. 2/3 of the cervical spinal cord?

A

anterior spinal a.

35
Q

What supplies the medullary pyramids?

A

ant. spinal a.

36
Q

What supplies the posterior 2/3 of the cervical spinal cord?

A

post. spinal aa.

37
Q

What does the PCA supply?

A

midbrain
med. & inf. surfaces of the temporal and occipital lobes
thalamus and globus pallidus

38
Q

What does the post. inf. cerebellar aa. (PICA) supply?

A

inf. surface of the cerebellum
lat. part of the rostral medulla
choroid plexus of the 4th ventricle

39
Q

Posterior cerebral a.

A

Cortical branches to occipital lobe and medial aspect of temporal lobe

Med Neuro Block 1 (11 decks)

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