tympanosquamous fissure
tym·pa·no·squa·mous fis·sure
[TA]the fissure that separates the tympanic part of the temporal bone from the squamous part; it is continuous medially with the petrotympanic fissure and the petrosquamous fissure.
Synonym(s): fissura tympanosquamosa [TA], squamotympanic fissure
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