[TA] a number of small branches arising from the internal carotid artery as it traverses the cavernous sinus, distributed to the trigeminal ganglion, the walls of the cavernous and inferior petrosal sinuses, and the nerves contained within them; some anastomose with branches of the middle meningeal artery.branches of internal carotid artery to trigeminal ganglion, tentorial basal branch of cavernous part of internal carotid artery, marginal tentorial branch of internal carotid artery SYN: ramus sinus cavernosi partis cavernosae arteriae carotidis internae [TA], cavernous arteries, cavernous sinus branch of internal carotid artery, ramus sinus cavernosi arteriae carotidis arteriae, ramus sinus cavernosi arteriae carotidis internae.