Intercavernous sinuses

Intercavernous sinuses
Dural veins
The sinuses at the base of the skull. (Visible as light blue circle at center.)
Details
Identifiers
Latin	sini intercavernosi
MeSH	A07.231.908.224
FMA	50773
*Anatomical terminology* [edit on Wikidata]

The intercavernous sinuses are two in number, an anterior and a posterior, and connect the two cavernous sinuses^[1] across the middle line.

Intercavernous sinuses

The anterior passes in front of the hypophysis cerebri, the posterior behind it, and they form with the cavernous sinuses a venous circle (circular sinus) around the hypophysis.

The anterior one is usually the larger of the two, and one or other is occasionally absent.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

↑ "Intercavernous sinuses" at Dorland's Medical Dictionary

To COS	superior sagittal straight inferior sagittal occipital

To CS	sphenoparietal intercavernous superior ophthalmic ethmoidal central retinal nasofrontal vorticose veins inferior ophthalmic

To IJV	sigmoid: transverse petrosquamous superior petrosal inferior petrosal basilar plexus internal auditory veins condylar

Facial/common facial

Direct

Brachiocephalic

Vertebral	occipital occipital emissary suboccipital venous plexus deep cervical

Direct	inferior thyroid inferior laryngeal thymic

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Intercavernous sinuses

References

See also