The area of the ear canal that is made of cartilage is found in which part?

The outer third of the ear canal is comprised primarily of cartilage, which provides flexibility and support. This region extends from the external ear to the point where the ear canal transitions into the bony part. The cartilaginous portion serves several functions, including housing glands that produce earwax (cerumen) and maintaining the shape of the canal.

In contrast, the inner two-thirds of the ear canal is made up of bone, which provides a more rigid structure. The middle ear refers to the space behind the eardrum where the ossicles are located, and the inner ear contains the cochlea and vestibular system, neither of which have cartilage. Therefore, understanding the structure of the ear canal is essential in audiology, as it plays a significant role in sound transmission and protection.