Connection between pterygoid plexus and cavernous sinus

Posted on 16.06.2018 by Shenika
The two cavernous sinuses are connected to each other by anterior and posterior cavernous sinuses lying in front and behind the pituitary. Many of the deeper veins of the front of the head. The occipital sinus is formed at the embryonic stage and mostly regresses after infancy. Knowledge of the variations is important for diagnosis and endovascular treatment of the cavernous sinus lesions.

Facial vein via superior ophthalmic vein.

Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. Emissary veins passing through the foramina in the middle cranial fossa connect the cavernous sinus to the pterygoid plexus of veins and to the facial veins. The superficial middle cerebral vein drains into the cavernous sinus from above. A venous plexus lying between the temporalis, lateral pterygoid, and medial pterygoid muscles. It is the only anatomic location in the body in which an artery travels completely through a venous structure. Gross anatomy The cavernous sinus is located on either side of the pituitary fossa and body of the sphenoid bone between the endosteal and meningeal layers of the dura. Depending on relative pressures the superior ophthalmic veins either drain to or from the cavernous sinus.
There are also connections with the pterygoid plexus of veins via inferior ophthalmic vein, deep facial vein and emissary veins. The cavernous sinus transmits multiple cranial nerves to the superior orbital fissure and foramen rotundum. Pulsating exophthalmos occurs due to abnormal communication between cavernous sinus and internal carotid artery. Want to thank TFD for its existence. The most common cause is spread of infection from the dangerous area of face squeezing a pimple or boil. Lesions affecting the cavernous sinus may affect isolated nerves or all the nerves traversing through it. Cranial nerve VI lies free in the cavernous sinus.