brain bloodflow

Question 1

where is anterior circulation derived from

Answer 1

internal carotid artery via the aortic arch

Question 2

where is posterior circulation derived from

Answer 2

basilar artery via the subclavian artery

Question 3

anterior circulation

Answer 3

aorta-> left/right common carotid artery-> external/internal carotid artery-> (from internal) anterior and middle cerebral arteries

Question 4

aorta

Answer 4

largest artery; feeds the right and left common carotid artery

anterior circulation

Question 5

left/right common carotid artery

Answer 5

supplies the left/right side of the face and hemisphere of the brain

anterior circulation

Question 6

external carotid artery

Answer 6

provides blood to the pharynx, tongue, face, and eyes (FEPT)

anterior circulation

Question 7

external carotid artery

Answer 7

provides blood to the pharynx, tongue, face, and eyes (FEPT)

anterior circulation

Question 8

internal carotid artery

Answer 8

main source of blood supply to the brain

anterior circulation

Question 9

anterior cerebral artery

Answer 9

supplies blood to the medial portions of the frontal and parietal lobes, corpus callosum, and basal ganglia

anterior circulation

Question 10

middle cerebral artery

Answer 10

important in speech, language, and hearing function
- MCA upper and lower branches provide blood supply to the lateral hemisphere surfaces
- affects broca’s area, primary auditory cortex, most of primary motor and somatosensory cortex, wernicke’s area, angular and supramarginal gyri, and arcuate fasciculus
- MCA includes branches that supply the frontal, parietal, and temporal lobes
* - infarct at junction between ICA and MCA interrupts bloodflow to all perisylvian speech and language areas
* deeper infarcts (further into cerebral hemispheres) may produce more localized deficits

anterior circulation

Question 11

posterior circulation

Answer 11

aorta-> left/right subclavian artery-> left/right vertebral artery and basilar artery-> right and left branches of AICA, SCA, & PCA

Question 12

left/right subclavian artery

Answer 12

supplies blood to left/right arm

posterior circulation

Question 13

left/right vertebral artery

Answer 13

supply blood to the left/right part of the cerebellum and lateral part of the medulla

posterior circulation

Question 14

basilar artery

Answer 14

posterior circulation for the cerebral hemisphere

posterior circulation

Question 15

anterior inferior cerebellar artery

(AICA)

Answer 15

supplies blood to parts of the pons and cerebellum

posterior circulation

Question 16

superior cerebellar artery

(SCA)

Answer 16

supplies the upper part of the cerebellum and some of the midbrain

posterior circulation

Question 17

posterior cerebral artery

(PCA)

Answer 17

supplies posterior parts of the hemispheres, including occipital lobe, and part of thalamus and corpus callosum

posterior circulation