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