[Various aspects of the anatomy of the cavernous sinus]

Ramifications of the intrapetrous and cavernous segments of the internal carotid artery and the morphological structure of the cavernous sinus were studied on 18 specimens. The study was conducted by two methods: by means of corrosion specimens (12 cases) and with a surgical microscope. The presence of a meningohypophysea was recorded in 79% of cases, a. sinus cavernosus inferior in 58%, a. capsullaris in 17%, a large pterygoid artery, a. pterygoidea vidii in 8% of cases; aa. carotico-tympanicae were not found. Anastomoses between both internal carotid arteries were not discovered. According to the findings of micropreparation, the cavernous sinus is pierced by rigid trabeculae of a hard connective tissue. No venous plexus were found in the cavernous sinus.