| Straight sinus | |
|---|---|
 Dural veins (Straight sinus labeled as 'SIN. RECTUS' at center right.) | |
 Dura mater and its processes exposed by removing part of the right half of the skull, and the brain. (Straight sinus visible as blue line at center left.) | |
| Details | |
| Source | Inferior sagittal sinus, great cerebral vein |
| Drains to | Confluence of sinuses |
| Identifiers | |
| Latin | sinus rectus |
| TA98 | A12.3.05.112 |
| TA2 | 4853 |
| FMA | 50769 |
| Anatomical terminology | |
The straight sinus, also known as tentorial sinus or the sinus rectus, is an area within the skull beneath the brain. It receives blood from the inferior sagittal sinus and the great cerebral vein, and drains into the confluence of sinuses.