What Is Ear Cartilage?
The structure and shape of the outer ear is not derived from internal bone structure but from ear cartilage. This makes the ear a cartilaginous structure as it is given its shape by the cartilage. Elastic or yellow cartilage found in the outer ear is also found in the larynx and epiglottis. Ear cartilage contains elastic fiber networks and collagen fibers. It is surrounded by the perichondrium, which supplies nutrients to the ear cartilage. An injury that separates the perichondrium from the ear cartilage is known as cauliflower ear. Wrestlers, fighters and rugby players are most susceptible to this type of injury. A blow to the ear can allow a blood clot or other fluid to collect between the cartilage and the perichondrium, depriving the cartilage of necessary nutrients. If the cartilage dies, fibrous tissue forms in the overlying skin. This leaves the outer ear looking lumpy and deformed, resembling a cauliflower.
