What is a pinnea?

Answer 1

A pinna refers to the external part of the ear, commonly known as the auricle or outer ear, which helps capture sound waves and direct them into the ear canal. In a broader context, "pinna" can also refer to a feather or fin-like structure in various organisms, including some species of fish and birds. In anatomy, it can describe any similar appendage. The structure plays a vital role in the auditory system and contributes to sound localization.