Occipital sinus
The occipital sinus is the smallest of the dural venous sinuses (also known as the cranial sinuses) and only present in around 65% of cases.[1]
| Occipital sinus | |
|---|---|
 Dural veins | |
 The sinuses at the base of the skull. (Occipial sinus visible at bottom center, below the Foramen Magnum on image.) | |
| Details | |
| Drains to | confluence of sinuses |
| Identifiers | |
| Latin | sinus occipitalis |
| TA98 | A12.3.05.105 |
| TA2 | 4855 |
| FMA | 50781 |
| Anatomical terminology | |
It is situated in the attached margin of the falx cerebelli, and is generally single, but occasionally there are two.
It commences around the margin of the foramen magnum by several small venous channels, one of which joins the terminal part of the transverse sinus; it communicates with the posterior internal vertebral venous plexuses and ends in the confluence of the sinuses.
Occipital sinuses were discovered by Guichard Joseph Duverney.
Additional images
Base of the skull. Upper surface.
References
- "Sinus occipitalis". Ars Neurochirurgica. Retrieved 11 April 2022.
This article incorporates text in the public domain from page 658 of the 20th edition of Gray's Anatomy (1918)
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