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''.

Additional images

File:Gray906.png, The muscles of the auricula. File:Darwin-s-tubercle.jpg, Left: Darwin's tubercle. Right: the homologous point in a macaque. File:Slide2COR.JPG, External ear. Right auricle. Lateral view. File:Slide3COR.JPG, External ear. Right auricle. Lateral view. File:Slide4COR.JPG, External ear. Right auricle. Lateral view.

References

Ear {{anatomy-stub