Tympanic part of the temporal bone
The tympanic part of the temporal bone is a curved plate of bone lying below the squamous part of the temporal bone, in front of the mastoid process, and surrounding the external part of the ear canal.
| Tympanic part of the temporal bone | |
|---|---|
Left temporal bone. Outer surface. (Tympanic part at bottom center.) | |
Coronal section of right temporal bone. | |
| Details | |
| Identifiers | |
| Latin | pars tympanica ossis temporalis |
| TA98 | A02.1.06.052 |
| TA2 | 693 |
| FMA | 52880 |
| Anatomical terms of bone | |
It originates as a separate bone (tympanic bone), which in some mammals stays separate through life.
Evolutionarily, a portion of it is derived from the angular bone of the reptilian lower jaw.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.