This grooved surface of the foramen magnum is separated on either side from the petrous portion of the temporal bone by the petro-occipital fissure, which is occupied in the fresh state by a plate of cartilage; the fissure is continuous behind with the jugular foramen, and its margins are grooved for the inferior petrosal sinus.
| Petro-occipital fissure | |
|---|---|
 Base of the skull. Upper surface. (Petro-occipital fissure is not labeled, but petrous portion is bottom part of temporal bone, in pink, and occipital bone is at bottom, in blue.) | |
| Details | |
| Identifiers | |
| Latin | fissura petrooccipitalis |
| TA98 | A02.1.00.047 |
| TA2 | 450 |
| FMA | 75039 |
| Anatomical terminology | |
References
edit
This article incorporates text in the public domain from page 193 of the 20th edition of Gray's Anatomy (1918)
External links
edit- "Anatomy diagram: 34257.000-2". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2013-06-22.
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