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cav·i·ty of con·cha[TA]
the space within the lower, larger portion of the concha below the crus helicis; it forms the vestibule leading into the external acoustic meatus.
The inferior portion of the cavity of the auricle of the ear. It leads to the external acoustic meatus.
See also: cavum
pl. cava [L.] cavity.
that part of the ear canal supported by the deeper, conchal part of the auricular cartilage.