petrosal sinuses

petrosal sinuses

channels, superior and inferior, that drain the cavernous sinuses into the transverse sinuses. The superior petrosal sinuses receive cerebral and cerebellar veins, whereas the inferior petrosal sinuses receive cerebellar veins and veins from the internal ear and brainstem. Basilar sinuses connect the inferior petrosal sinuses to each other and to the vertebral plexus of veins.
References in periodicals archive ?
After the correct placement of the catheters, simultaneous blood samples are obtained from the periphery, left and right inferior petrosal sinuses, and CRH or DDAVP is injected, and post-injection ACTH samples are obtained from each of the two sinuses and periphery at 3, 5, 10 and 15 minutes (3,14).
Bilateral inferior petrosal sinuses sampling in the routine investigation of Cushing's syndrome: a comparison with MRI.