Suprameatal triangle
| Suprameatal triangle | |
|---|---|
 Relations of the brain and middle meningeal artery to the surface of the skull. 1. Nasion. 2. Inion. 3. Lambda. 4. Lateral cerebral fissure. 5. Central sulcus. AA. Reid's base line. B. Point for trephining the anterior branch of the middle meningeal artery. C. Suprameatal triangle. D. Sigmoid bend of the transverse sinus. E. Point for trephining over the straight portion of the transverse sinus, exposing dura mater of both cerebrum and cerebellum. Outline of cerebral hemisphere indicated in blue; course of middle meningeal artery in red. | |
| Details | |
| Identifiers | |
| Latin | f. suprameatica |
| TA98 | A02.1.06.069 |
| TA2 | 710 |
| FMA | 54960 |
| Anatomical terminology | |
In the temporal bone, between the posterior wall of the external acoustic meatus and the posterior root of the zygomatic process is the area called the suprameatal triangle, or mastoid fossa, through which an instrument may be pushed into the tympanic antrum.
This article incorporates text in the public domain from page 140 of the 20th edition of Gray's Anatomy (1918)
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