| tentorium | <anatomy> A fold of the dura mater which separates the cerebellum from the cerebrum and often incloses a process or plate of the skull called the bony tentorium. Origin: L, a tent. Source: Websters Dictionary (01 Mar 1998) |
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| tentorium of hypophysis | A fold of dura mater extending transversely across the sella turcica and roofing over the hypophyseal fossa; it is perforated in its centre for the passage of the infundibulum. Synonym: diaphragma sellae, diaphragm sellae, tentorium of hypophysis. (05 Mar 2000) |
| notch of tentorium | The triangular opening in the tentorium cerebelli through which the brainstem extends from the posterior into the middle cranial fossa. Synonym: incisura tentorii, notch of tentorium. (05 Mar 2000) |
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