The framework of the outer ear is primarily formed by cartilage. This flexible cartilage structure supports the shape of the outer ear, also known as the auricle or pinna, which helps in capturing sound waves and directing them into the ear canal.
In detail, the ear consists of several parts: the helix (the outer rim), the antihelix (the ridge inside the helix), the tragus (the small projection in front of the ear canal), and the lobule (the soft fleshy part at the bottom). All of these structures are made of cartilage, which not only provides the necessary structural integrity but also allows for slight flexibility.
This cartilaginous framework plays a crucial role in the ear’s ability to function effectively as it aids in sound localization and amplification, helping us to hear better.