tentorial notch


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ten·to·ri·al notch

[TA]
the triangular opening in the tentorium cerebelli through which the brainstem extends from the posterior into the middle cranial fossa.
Farlex Partner Medical Dictionary © Farlex 2012

tentorial notch

An arched cavity in the free border of the tentorium cerebelli through which the brainstem passes.
See also: notch
Medical Dictionary, © 2009 Farlex and Partners