Neuro: Brain Blood Supply

Question 1

pair of veins that drain the midbrain and the deep parts of the diencephalon

Answer 1

basal veins (veins of rosenthal)

Question 1

the great vein of galen empties into which sinus?

Answer 1

inferior sagittal sinus

Question 2

A bilateral infarct in the MCA/ACA watershed zone affects largely white matter, and would result in an inability to abduct the arms or flex the elbows. This is known as what syndrome?

Answer 2

man-in-a-barrell (brachial diplegia)

Question 3

large vein located in the central sulcus, anastomosing with the middle cerebral vein and the superior sagittal sinus

Answer 3

superior anastomotic (trolard’s) vein

Question 4

AICA, PICA, superior cerebellar and posterior choroidal arteries are all examples of what type of artery?

Answer 4

long circumferential arteries

Question 5

A person with a stroke in the ACA may experience motor and sensory weakness in what part of the body?

Answer 5

Below the hip

Question 5

This vessel covers the largest territory in the brain, supplying most of the lateral frontal, parietal, and temporal lobes

Answer 5

middle cerebral a.

Question 6

the anteior spinal medullary artery with the largest calibur supplying most of the blood to the lower 2/3 of the anterior cord

Answer 6

the great radicular artery (of adamkiewicz)

Question 6

the two terminal branches of the internal carotid arteries

Answer 6

anterior and middle cerebral arteries

Question 7

The artery that supplies the primary chorioid plexus, which generates CSF

Answer 7

anterior choroidal artery

Question 8

Small, penetrating ______ branches arise from the basilar artery and supply the midline pons and midbrain, often running deep all the way to the 4th ventricle

Answer 8

paramedian

Question 9

radicular arteries that form anastomoses with the anterior and posterior spinal arteries are known as what?

Answer 9

spinal medullary arteries

Question 10

highest incidence of aneurysms (90%) affect the anterior arterial circulation and occur in what fossa?

Answer 10

the interpeduncular fossa (circle of willis)

Question 11

A person with either and MCA or ACA stroke will experience motor and sensory loss on which side of the body?

Answer 11

contralateral - all the tracts have crossed already by they time they reach the cortex

Question 12

veins leaving the subarachnoid space to pierce the dura and gain access to the superior sagittal sinus

Answer 12

bridging veins

Question 13

in what way does venous drainage of the posterior spine differ from arterial supply?

Answer 13

posterior arterial spinal supply is accomplished by two arteries running longitudinally near the laterodorsal horns, while the posterior spinal vein is unpaired and runs right down the midline

Question 13

An area of the spinal cord with weak supply

Answer 13

watershed zone (C8-T9)

Question 13

These are small branches of the MCA supplying the putamen and caudate nucleus (parts of the basal ganglia) and the internal capsule. The most lateral of these branches is referred to as the “artery of cerebral hemorrhage” because of its frequent involvement in hemorrhagic strokes.

Answer 13

lenticulo-striate branches

Question 14

artery that supplies the medial surface of the occipital lobe, as well as the inferior and lower lateral surfaces of the temporal lobe

Answer 14

PCA (posterior cerebral artery)

Question 15

Portion of the brain associated with a variety of functions including control of voluntary motor movements, procedural learning, and routine behaviors or “habits”

Answer 15

basal ganglia

Question 17

rupture of the bridging veins would result in bleeding where?

Answer 17

subdural space (subdural hematoma)

Question 19

A person with a stroke in the MCA may experience motor and sensory weakness in what part of the body?

Answer 19

portions of the body from the face though the shoulder down through the hands (but not below the hip)

Question 21

the basilar artery is formed by a pair of ______ arteries ascending up the medulla, and ends by splitting into a pair of ______ _____ arteries.

Answer 21

vertebral; posterior cerebral

Question 23

atheromatous plaques tend to concentrates at points in the arteries where what is greatest?

Answer 23

turbulence

Question 24

name the three arteries that supply the cerebellum

Answer 24

anterior inferior cerebellar artery (AICA), posterior inferior cerebellar artery (PICA) and the superior cerebellar artery

Question 25

vein running in the lateral fissure that unites the cavernous and superior sagittal sinus systems

Answer 25

superficial middle cerebral vein

Question 26

the internal carotid arteries each supply about 40% of blood brain flow, with the remaining 20% provided by what arteries?

Answer 26

vertebral

Question 27

vein formed by the joining of the basal veins and the internal cerebral veins

Answer 27

the great vein of galen

Question 29

A berry aneurysm that pops would result in blood flowing into what space?

Answer 29

subarachnoid space

Question 30

clots that form in the left auricle during atrial fibrilation most commonly ascend to the brain via what vessel?

Answer 30

left common carotid a.