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Flashcards in blood supply Deck (17):
1

brain receives blood supply from

branches of internal carotid arteries
vertebral/basilar arterial system

2

Internal carotid has 5 branches

1- ophthalmic artery
2- anterior choroidal artery
3- posterior communicating artery
4- bifuricates anterior cerebral artery
5-bifuricates middle cerebral arteries

3

Anterior cerebral artery

enter longitudinal fissure by passing medial to gyrus rectus

4

anterior communicating arteries

interconnects 2 anterior cerebral arteries
blood to midsagittal cortical regions as far back as parietoocipital sulcus
some lateral surface of superior frontal gyrus , superior parietal lobule

5

lenticulostriate branches

from anterior cerebral artery
supply internal structures

6

middle cerebral artery

gives off many lenticulostriate arteries that enter base of brain
supply deep internal structures
basal ganglia, internal capsule, insula
remaining lateral surface of frontal and parietal, superior and middle temporal gyro

7

anterior perforated substance

arteries that case small dimples at the points which the small lenticulostriate arteries enter brain

8

vertebral arteries

branch from arteries in neck- subclavian arteries
enter via foramen magnum

9

basilar artery

2 vertebral arteries join

10

PICA

posterior inferior cerebellar artery
1st branch of vertebral artery
supply cerebellum

11

posterior spinal artery

branch of PICA

12

Anterior spinal artery

2nd branch of vertebral that unit medially

13

basilar artery has 3 major paired branches

Anterior Inferior Cerbellar arteries-AICA (cerebellum)
Superior cerebellar arteries (cerebellum)
Posterior cerebral arteries- (cerebrum)

14

posterior cerebal arteries

midsagittal surfaces of temporal and occipital lobes and lateral peripheral margins of these lobes

15

Circle of Willis

forms a ring around region of infundibular stalk, optic nerves, optic chasm

16

COW arteries

internal carotid arteries
anterior cerebral arteries
anterior communicating artery
posterior communicating artery
posterior cerebral arteries

*middle cerebral arteries not part of COW

17

Aneurysms

may develop at junction points of theses arteries