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单词 Ectotympanic
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Ectotympanic

英语百科

Ectotympanic

The ectotympanic, or tympanicum, is a bony ring in the tympanic part of the temporal bone that holds the eardrum, or tympanic membrane. Its position and attachment to the skull vary within mammals, and particularly primates, and can be either inside or outside the auditory bulla.

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更新时间:2025/6/18 13:14:53