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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).
Interpeduncular cistern. It is situated at the base of the brain, between the two cerebral peduncles of midbrain and dorsum sellae and continuous below with the pontine cistern and superiorly with the chiasmatic cistern. It contains: The optic chiasm; The bifurcation of the basilar artery; Peduncular segments of the posterior cerebral arteries ...
Superior cistern; Cistern of lamina terminalis; Chiasmatic cistern; Interpeduncular cistern; Pontine cistern; Cisterna magna; Spinal subarachnoid space; Ventricular system. Lateral ventricles. Angular bundle; Anterior horn; Body of lateral ventricle; Inferior horn; Posterior horn. Calcar avis; Subventricular zone; Third ventricle; Fourth ...
Each posterior communicating artery is situated within the interpeduncular cistern, superolateral to the pituitary gland. [2]: 450 Each are is situated upon the medial surface of the ipsilateral cerebral peduncle [1]: 477 and adjacent to the anterior perforated substance.
The descending upper fibers from the internal capsule continue on through the midbrain and are then seen as the fibers in the cerebral peduncles. [5] The corticopontine fibers are found in the outer and inner third of the cerebral peduncle, these are the cortical input to the pontine nuclei. [6]
Beyond the midbrain, between the lobes, is the interpeduncular fossa, which is a cistern filled with cerebrospinal fluid [citation needed]. The majority of each lobe constitutes the cerebral crus .
The interpeduncular fossa is a deep depression of the ventral surface of the midbrain between the two cerebal crura. [ 1 ] [ 2 ] [ 3 ] It has been found in humans and macaques, but not in rats or mice, showing that this is a relatively new evolutionary region.
Each ambient cistern extends anterolaterally around the mesencephalon to become continuous rostrally/anteriorly with the interpeduncular cistern. [2] Each ambient cistern is continuous dorsally/posteriorly with the quadrigeminal cistern; [3] [4] inversely, each ambient cistern is an anterolateral extension of the quadrigeminal cistern on either side [2] (some sources define the quadrigeminal ...