Sigmoid sulcus
| Sigmoid sulcus | |
|---|---|
Left temporal bone. Inner surface. (Sigmoid sulcus visible at center left.) | |
Base of the skull. Upper surface. (Sigmoid sulcus not labeled, but is visible near mastoid foramen.) | |
| Details | |
| Identifiers | |
| Latin | sulcus sinus sigmoidei ossis temporalis |
| TA98 | A02.1.06.006 |
| TA2 | 456 |
| FMA | 55499 |
| Anatomical terms of bone | |
The inner surface of the mastoid portion of the temporal bone presents a deep, curved groove, the sigmoid sulcus, which lodges part of the transverse sinus; in it may be seen the opening of the mastoid foramen.