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
TA98	A12.3.05.117
TA2	4862
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.

The anterior passes in front of the hypophysis cerebri (pituitary gland), 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 page 659 of the 20th edition of Gray's Anatomy (1918)

^ "Intercavernous sinuses" at Dorland's Medical Dictionary

Retromandibular	maxillary pterygoid plexus superficial temporal anterior auricular
Direct	posterior auricular transverse cervical suprascapular anterior jugular jugular venous arch

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