The external ear is also called the pinna or auricle.
The anatomical features labeled here are of primary importance to the
hearing healthcare provider. Several of these anatomical landmarks hold
special significance for the creation of a proper fitting earmold.
Antihelix A ridge of cartilage that is part of the pinna, just above the concha
Antitragus A ridge of cartilage opposite the tragus
Aperture The opening of the ear canal
Auricle or pinna The external ear
Concha The lower bowl-shaped cavity just outside of the opening of the ear canal
Ear canal The 2 to 3 cm long external auditory meatus, consisting of an outer cartilaginous portion and an inner bony portion
Heel
The intertragal notch located at the bottom of the concha bowl
Helix lock (curl)
A recessed "crevice" at the upper part of the ear, just above the valley
Tragus A small ridge in front of the external opening of the ear canal
Valley (earpiece) crus (ear) The horizontal piece of cartilage located outside the ear canal that divides the upper and lower parts of the ear
