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Anterior, Middle & Posterior Cerebral Artery Anatomy
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Gravity
Terms in this set (15)
list the branches from the ACA
passes between CNII & anterior perforated substance
- Recurrent artery of Heubner (80% arise from A1 0> head of caudate, putamen & ant internal capsule
- medial orbitofrontal a.
- frontopolar a.
- callosomarginal
internal frontal branches - ant, mid, post
paracentral a.
- pericallosal a.
sup. internal parietal (precuneate) a.
inf. internal parietal a.
describe the following segment of the ACA:
A1
ACA from origin to ACoA
describe the following segment of the ACA:
A2
from ACoA to branch-point of callosomarginal
describe the following segment of the ACA:
A3
from branch-point of callosomarginal to sup surface of corpus callosum 3cm post to genu
describe the following segment of the ACA:
A4
pericallosal
describe the following segment of the ACA:
A5
terminal branch
describe the following segment of the MCA:
M1
MCA from origin to bifurcation (horizontal)
classic bifurcation into relatively symmetrical sup & inf trunks in 50%
lateral fronto-orbital & prefrontal branches arise from M1 or superior M2 trunk
precentral, central, ant, & post parietal aa.'s arise from superior (60%), middle or inf trunk
superior M2 trunk does not give any branches to temporal lobe
describe the following segment of the MCA:
M2
MCA trunks from bifurcation to emergence from sylvian fissure
describe the following segment of the MCA:
M3-4
distal branches
describe the following segment of the MCA:
M5
terminal branch
describe the following segment of the PCA:
P1
PCA from origin to posterior communicating a.
the long & short circumflex & thalamoperforatig aa's arise from P1
describe the following segment of the PCA:
P2
PCA from origin of p-comm to origin of inf temporal aa.'s, traverses the ambient cistern, hippocampal, ant temporal, peduncular perforating and medial post choroidal aa.'s arise from this segment
describe the following segment of the PCA:
P3
PCA from origin of inf temporal branches to origin of terminal branches (ie quadrigeminal segment), traverses the quadrigeminal cistern
describe the following segment of the PCA:
P4
segment after the origin of the parieto-occipital & calcarine aa.'s, includes cortical branches of the PCA
list the branches of the MCA
1. medial & lateral lenticulostriate aa.'s
2. anterior temporal
3. posterior temporal
4. lateral orbitofrontal
5. ascending frontal (candelabra)
6. precentral (prerolandic)
7. central (rolandic)
8. anterior parietal (postrolandic)
9. posterior parietal
10. angular
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