Anatomy Of The Cavernous Sinus

Lateral meningeal layer of the dura mater running from the roof to the floor. The cavernous sinus is made up of very thin walled veins that make up a venous plexus.

Cavernous Sinus Anatomy

Posterior petrous part of the temporal bone.

Anatomy of the cavernous sinus. The cavernous sinus is one of the dural venous sinuses of the head. The cavernous sinuses are 1 cm wide cavities that extend a distance. The cavernous sinus contains the internal carotid artery and several cranial nerves.

Inferior petrosal sinus directly to the jugular bulb. Superior and inferior ophthalmic veins. Venous blood drains posteroinferiorly to eventually empty into the pytergoid plexuses.

It is a network of veins that sit in a cavity approximately 1 x 2 cm in size in an adult. 2 the carotid siphon of the internal carotid artery and cranial nerves iii iv v branches v 1 and v 2 and vi all pass through this blood filled space. Medial body of the sphenoid bone.

The cavernous sinus receives venous blood from the following. The borders of the cavernous sinus are as follows. There are numerous structures surrounding the cavernous sinus that are noteworthy.

Drainage of the cavernous sinus is via. Superior petrosal sinus to the transverse sinus. Venous plexus on the internal carotid artery ica to the clival basilar venous plexuses.

It is clinically important because of its location its close relationship to several cranial nerves and the internal carotid artery and the complex of veins without valves which drain from and to the paired cavernous sinuses. Anterior superior orbital fissure. Roof meningeal layer of the dura mater.

Superior middle cerebral vein. Emissary veins passing through the. The cavernous sinus is a true dural venous sinus and not a venous plexus.

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