intercavernous sinus


Also found in: Dictionary, Thesaurus, Encyclopedia.

intercavernous sinus

The anterior and the posterior intercavernous sinuses interconnect the right and left cavernous sinuses at the base of the brain. All sinuses are valveless; thus, the cavernous and intercavernous sinuses form a circle -- the circular sinus -- that enwraps the sella turcica.
See also: sinus