Arterial Supply

Question 0

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

Answer 0

MCA

ACA

Question 1

What connects the internal carotid artery and vertebral arteries?

Answer 1

Circle of Willis

Question 2

What are the long/circumferential branches of the ACA?

Answer 2

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

Question 3

What are the long/circumferential branches of the MCA?

Answer 3

cortical branches to frontal, parietal and temporal lobes

Question 4

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

Answer 4

posterior inferior cerebellar a.

posterior spinal a.

Question 5

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

Answer 5

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

Question 6

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

Answer 6

posterior communicating a.

anterior choroidal a.

Question 7

What are the short/penetrating branches of the ACA?

Answer 7

medial striate a./recurrent a. of Huebner

Question 8

What are the short/penetrating branches of the MCA?

Answer 8

lenticulostriate aa.

Question 9

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

Answer 9

anterior spinal

Question 10

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

Answer 10

pontine aa. (short)

Question 11

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

Answer 11

posterior choroidal a.

arteries to thalamus

Question 12

What are the parts of the internal carotid a.?

Answer 12

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

Question 13

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

Answer 13

C4

Question 14

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

Answer 14

opthalmic arteries
PComm aa.
Anterior choroidal aa.

Question 15

What supplies the orbit and optic n.?

Answer 15

opthalmic arteries

Question 16

What anastomoses with the post. cerebral aa.?

Answer 16

PComm aa.

Question 17

What supplies the deep cortical structures?

Answer 17

ant. choroidal aa.

Question 18

Where is the ACA located?

Answer 18

longitudinal fissure

Question 19

What links the 2 ACAs?

Answer 19

AComm a.

Question 20

What does the ACA supply?

Answer 20

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

Question 21

What are signs and symptoms of an ACA infarct?

Answer 21

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

Question 22

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

Answer 22

MCA

Question 23

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

Answer 23

MCA

Question 24

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

Answer 24

lenticulostriate aa.; MCA

Question 25

What does the superior division of the MCA supply?

Answer 25

lat. surface of the frontal lobe | ant. portion of the parietal lobe

Question 26

What does the inferior division of the MCA supply?

Answer 26

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

Question 27

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

Answer 27

Weakness and/or sensory loss of the lt. side

Question 28

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

Answer 28

Weakness and/or sensory loss of rt. side | Broca's aphasia (non-fluent speech)

Question 29

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

Answer 29

sensory loss of lt. face, hand and arm | lt. hemineglect

Question 30

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

Answer 30

sensory loss from rt. face, hand and arm | Wernicke's aphasia (non-comprehension of speech)

Question 31

Where do the vertebral aa. branch from?

Answer 31

subclavian aa.

Question 32

What do the vertebral aa. pass through?

Answer 32

transverse foramina of the cervical vertebrae | enter the brain thru the foramen magnum

Question 33

What do the vertebral aa. anastomose to form?

Answer 33

basilar a.

Question 34

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

Answer 34

anterior spinal a.

Question 35

What supplies the medullary pyramids?

Answer 35

ant. spinal a.

Question 36

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

Answer 36

post. spinal aa.

Question 37

What does the PCA supply?

Answer 37

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

Question 38

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

Answer 38

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

Question 39

Posterior cerebral a.

Answer 39

Cortical branches to occipital lobe and medial aspect of temporal lobe