arterial supply of the brain Flashcards
ethmoid and frontal sinus supplied by
ophthalmic. a
what are the 2 branches which are close to the termination of internal carotid artery?
1- post. comminicating artery
2- choroidal artery
which of the following forming part of cirlce of willus ?
post.comminicating artery
cource of post.commincating.a ?
runs postriorly above “oculumotor.n”
choroidal artery gives branches to ?
crus cerebri , internal capsule , LGB, optic tract (because it runs close to the optic tract )
when ACA will join ACA in oppisite side ?
after entering the longtudinal fissure of cerebrum by ant.comminicating.a
ACA join ACA by
ACA
ACA join PCA by
PCA
“leg area” supplied by
ACA
cortical branches of ACA is :
1- “ leg area”
2- parieto-occipital sulcus
3- strip of cortex
central branches of ACA :
1- internal capsule
2- caudate neucleus
3- lentiform nuclei
MCA supply all lat.surfece of hemisphere except
1-narrow strip (ACA)
2- occopital pole+ inf.lat.surface of hemisphere(PCA)
MCA supply all motor area except
leg area
ant.perforating substance
MCA supply all motor area except
any artery to supply deep strucutre of the hemiscphere must pass inly through
ant.perforating substance
central branches of MCA :
same as ACA
which of the folloiwing supply the visual.cortex
PCA
cortical branches of PCA
1- hemisphere : inf.lat + med
2- occipital lobe : med + lat
central branches of PCA
1- mid brain 2-thalamus 3-MGB 4-pineal 5- lentiform neucleus
choroidal branches of PCA
supply inf.lat ventricle
3rd ventricle
how many perforated substance do we have and for what ?
3 perforated substance
2 ant. => central branches of ACA ,MCA
1 post. => PCA
splenum sipplied by
PCA
CC has double blood supply
PCA for splenum
ACA for entire CC except splenum
arterial supply for forceps major
PCA
forceps minor arterial supply
ACA
radiation
ACA
Tectum
ACA
MGB
PCA
LGB
ACA
Med. + Lat. striate arteries
central branches from MCA
basal vein terminate in
great cerebral vein
ant.choroidal artery branches from
internal carotid artery
post.choroidal.a
PCA
what is the relation btw MCA and ACA to lateral sulcus and callosal sulcus
MCA runs laterally to lateral sulcus
ACA runs medially to callosal sulcus
ACA terminate
anastomosing with PCA by post.comminicating artery
MCA anastomosis
MCA doesn’t anastomose it gives beanches on lateral surface
basal vein = ?
Deep middle cerebral.v + ACV + striate.v
internal cerebral vein = ?
thalamostriate.v + choroidal.v
2 internal cerebral vein unite forming
great cerebral vein
great cerebral vein empty in
straight sinus
at which part of the skull confluance sinus present ?
internal occipital protrubance
superior petrosal sinus drain into
transverse sinus
case scenario …. MRI reveal aniyprisim of internal corotid artery , which stucture most common to be affected too ?
abducent nerve
cavernous sinus drain to transvers sinus throgh
superior petrosal sinus
cavernous sinus drain to internal jagular vein through
inferior petrosal sinus
what are the comminication or what are the stricture drain into basilar sinus ??
1- connect 2 inf.petrosal sinus
2- connect vertebral plexus of vein
forceps major supplied by
MCA
