Blood supply of the brain Flashcards
What do the inferior posterior cerebellar arteries supply
Posterior cerebellum
What does the basilar artery supply
Brain stem
What do the inferior anterior cerebellar arteries supply
Anterior cerebellum
What do the superior cerebellar arteries supply
Cerebellum
What do the posterior cerebral cerebral arteries supply
Medial occipital and inferior temporal lobe
Hippocampus
What do the anterior cerebral arteries supply
Medial frontal and superior parietal lobe
Corpus callosum
What do the middle cerebral arteries supply
LAteral temporal and parietal lobes
and
Posterior frontal lobe
What do the lenticulostriate arteries supply
Subcortical structures –>
- Caudate
- Putaman
- Parts of the thalamus
- White matter tracts
Why are occlusions in lenticulostriate arteries deadly
Because there are no anastomoses and there is no alternative supply
Which sinuses come together in the confluence
Saggital sinus
Straight sinus
Occipital sinus
Where does the blood from the confluence of sinuses drain into
transverse sinus
Course of blood from confluence
Transverse sinus
Sigmoid sinus
External Jugular vein
What are the blood vessels in the brain composed of
Layer of endothelial cells which fit tightly together
What do tight junctions in blood vessels of the brain do
Allow passage only of a selected material between blood and brain
What plays a role in maintaining BBB
Pericytes and astrocytes
