cisterna magna

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cisterna

 [sis-ter´nah] (pl. cister´nae) (L.)
cisterna cerebellomedulla´ris poste´rior the enlarged subarachnoid space between the undersurface of the cerebellum and the posterior surface of the medulla oblongata; called also cisterna magna.
cisterna chy´li the dilated portion of the thoracic duct at its origin in the lumbar region; called also receptaculum chyli.

cisterna magna

The cranial subarachnoid space between the medulla and the cerebellum; the foramina of the fourth ventricle open into it. Cerebrospinal fluid flows from it into the spinal subarachnoid space.
See also: cisterna

cisterna

pl. cisternae; cistern.

cisterna cerebellomedullaris, cisterna magna
the enlarged subarachnoid space between the caudal surface of the cerebellum and the dorsal surface of the medulla oblongata.
cisterna chyli
the dilated portion of the thoracic duct at its origin in the lumbar region. Called also receptaculum chyli.
cisterna magna
see cisterna cerebellomedullaris (above).