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concha of auricle[TA]
the large hollow, or floor of the auricle, between the anterior portion of the helix and the antihelix; it is divided by the crus of the helix into the cymba above and the cavum below.
A concavity on the median surface of the auricle of the ear, divided by a ridge into the upper cymba conchae and a lower cavum conchae. The latter leads to the external auditory meatus.
See also: concha