The helix is the prominent rim of the auricle. Where the helix turns downwards posteriorly, a small tubercle is sometimes seen, namely the auricular tubercle of Darwin.

Helix
The auricle seen from the side
Horizontal section through left ear; upper half of section (helix labeled at bottom right)
Details
Identifiers
Latinhelix
TA98A15.3.01.005
TA2106
FMA60992
Anatomical terminology

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References

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  This article incorporates text in the public domain from page 1033 of the 20th edition of Gray's Anatomy (1918)