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As a venous sinus, the cavernous sinus receives blood from the superior and inferior ophthalmic veins and from superficial cortical veins, and is connected to the basilar plexus of veins posteriorly. The cavernous sinus drains by two larger channels, the superior and inferior petrosal sinuses , ultimately into the internal jugular vein via the ...
The petrolingual ligament lies at the posteroinferior aspect of the lateral wall of the cavernous sinus and marks the point at which the internal carotid artery enters the cavernous sinus. Anatomically, the petrolingual ligament demarcates two of the segments of the internal carotid artery:
The anterior clinoid process is a pyramid-shaped bony projection of the lesser wing of the sphenoid bone and forms part of the lateral wall of the optic canal. Between each ACP lies the sella turcica, which holds the pituitary gland. Additionally, the ACP is part of the anterior roof of the cavernous sinus. The posterior and inferior portions ...
The anterior petroclinoid ligament acts to laterally limit the superior wall of the cavernous sinus. The posterior petroclinoid ligament limits the posterior wall of the cavernous sinus. The angle between the two ligaments varies from 20 to 55 degrees. [3] [4] Anatomical Relations and Clinical significance:
lateral wall of the cavernous sinus superomedially; clivus medially; posterior petrous face inferolaterally; Within the dural confines of the trigeminal cave, there is a continuation of subarachnoid space along the posterior aspect of the cave, representing a continuation of the cerebral basal cisterns. [1]
The lateral approach is then used to reach the medial cavernous sinus and petrous apex. Lastly, the inferior approach is used to reach the superior clivus . Endoscopic endonasal transclival approaches are often described according to which segment of the clivus is involved in the approach, with the clivus typically divided into three regions. [ 9 ]
Advisers to the U.S. Food and Drug Administration on Tuesday backed an approval for Abbott Laboratories' heart valve repair device that is designed for patients who are at risk of complications or ...
Infections of the infratemporal space are rare. They may be significant however, as it is possible for infection to spread via emissary veins from the pterygoid plexus to the cavernous sinus, which may result in cavernous sinus thrombosis, a rare but life-threatening condition. [2]