Inferior petrosal sinus
The inferior petrosal sinuses are two small sinuses situated on the inferior border of the petrous part of the temporal bone, one on each side. Each inferior petrosal sinus drains the cavernous sinus into the internal jugular vein.
| Inferior petrosal sinus | |
|---|---|
Dural veins | |
The sinuses at the base of the skull. (Inferior petrosal sinus visible at center, between superior petrosal sinus and basilar plexus.) | |
| Details | |
| Source | cavernous sinus |
| Drains to | internal jugular vein |
| Identifiers | |
| Latin | sinus petrosus inferior |
| TA98 | A12.3.05.113 |
| TA2 | 4858 |
| FMA | 50770 |
| Anatomical terminology | |
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