The antihelix is a prominent structure in the outer ear, specifically located within the auricle or pinna. It is a curved ridge that runs parallel to the helix, the outermost rim of the ear. The antihelix helps to shape the ear and contributes to its overall function in capturing sound waves. This anatomical feature is made up of two main branches that create a Y-shape, leading to the tragus and the lobule. The antihelix plays a role in directing sound into the ear canal and is important for the ear's overall acoustics and sound localization.