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The cisterna magna (posterior cerebellomedullary cistern, [1] or cerebellomedullary cistern [2] [3]) is the largest of the subarachnoid cisterns.It occupies the space created by the angle between the caudal/inferior surface of the cerebellum, and the dorsal/posterior surface of the medulla oblongata (it is created by the arachnoidea that bridges this angle [3]).
Cisterna magna also called cerebellomedullary cistern - the largest of the subarachnoid cisterns. It lies between the cerebellum and the medulla oblongata. It receives CSF from the fourth ventricle via the median aperture (foramen of Magendie). The cisterna magna contains: The vertebral artery and the origin of the posterior inferior cerebellar ...
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 ...
It allows the flow of cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna magna. [2] [3] The other openings of the fourth ventricle are the lateral apertures - one on either side. [4] The median aperture varies in size but accounts for most of the outflow of CSF from the fourth ventricle. [1]
Cisterna magna; Spinal subarachnoid space; Ventricular system. Lateral ventricles. ... "Brain Anatomy and How the Brain Works". Johns Hopkins Medicine. 14 July 2021.
Diagram showing the positions of the three principal subarachnoid cisternæ. (Cisterna pontis labeled at left center.) Scheme of roof of fourth ventricle.
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]
The cerebellopontine cistern [2] (also pontocerebellar cistern, [1] cerebellopontine angle cistern, or angle cistern [2]) is a paired subarachnoid cistern at the cerebellopontine angle, an angle created between the cerebellum and the pons on either side.