Top Qs
Timeline
Chat
Perspective
Interpeduncular cistern
Subarachnoid cistern above and in front of the pons From Wikipedia, the free encyclopedia
Remove ads
The interpeduncular cistern (or basal cistern[1]) is the subarachnoid cistern situated between the dorsum sellae (anteriorly)[2] and the two cerebral peduncles[1][3][2] at the front of the midbrain.[3] Its roof is represented by the floor of the third ventricle (i.e. posterior perforated substance, and the two mammillary bodies). Its floor is formed by the arachnoid membrane extending between the temporal lobes of either side.[2] Anteriorly, it extends to the optic chiasm.[1]
Remove ads
The cistern communicates superiorly with the chiasmatic cistern, and inferiorly with the pontine cistern.[3] The chiasmatic cistern, cistern of lamina terminalis, and supracallosal cistern are all extensions of the interpeduncular cistern.[1]
Remove ads
Anatomy
Contents
The cistern contains:
- the posterior portion of the circle of Willis:[2]
- basilar artery[1] (including its bifurcation[1][3]),
- (origins of the) posterior cerebral arteries,[3][2]
- posterior communicating arteries,[4]
- (the origin of the) posterior thalamo-perforating arteries,[1]
- (part of the) superior cerebellar artery,[3]
- basal vein,[3]
- (proximal portion of the) anterior ponto-mesencephalic vein,[1]
- (proximal portion of the[1]) oculomotor nerves (CN III),[1][3][2]
- trochlear nerves (CN IV).[2]
Remove ads
References
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads