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 frontal 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.

单词	Tympanic bulla
释义	Tympanic bulla 英语百科 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 frontal 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.
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Tympanic bulla

Tympanic part of the temporal bone