| 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 | |
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.
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.