Ear Cartilage is a medical term used to describe the tough, elastic tissue found in the outer ear. The word is spelled using the International Phonetic Alphabet (IPA) as /iːr ˈkɑːtɪlɪdʒ/. The first syllable of "ear" is pronounced like the letter "e" followed by the sound of "r". The second syllable of "cartilage" is pronounced with the "a" sound as in "cat", followed by a "t" sound, and ending with the "ʒ" sound as in "vision". Understanding the IPA can help with pronunciation and communication in medical settings.
Ear cartilage refers to the flexible and semi-rigid connective tissue that forms the structure and shape of the outer ear, also known as the pinna or auricle. It is composed of a combination of elastic and fibrous cartilage, known as auricular cartilage, that gives the ear its characteristic appearance.
Located on both sides of the head, the ear cartilage is responsible for capturing and funneling sound waves into the ear canal, assisting in the process of hearing. Its shape and structure enable it to amplify and direct sound towards the eardrum, allowing for the detection and interpretation of auditory stimuli.
The cartilage is made up of specialized cells called chondrocytes that produce and maintain the extracellular matrix, consisting mainly of collagen and elastin fibers. This matrix provides the ear cartilage with both strength and flexibility, allowing it to bend and move without losing its shape.
Ear cartilage is predominantly avascular, meaning it lacks direct blood supply, which hinders its ability to heal or regenerate. This characteristic makes it more prone to damage and deformation from trauma, such as piercing or injuries, often resulting in ear cartilage deformities or complications.
In addition to its structural and functional roles, ear cartilage is also a common source of graft tissue for use in various reconstructive and cosmetic surgeries, such as rhinoplasty or repair of other damaged cartilage structures in the body.
The word "ear" comes from the Old English word "ēare", which can be traced back to the Proto-Germanic word "*auzōn". This term is related to the Old High German "ōra" and Old Norse "eyra". The word "cartilage" derives from the Latin word "cartilago", meaning "gristle" or "cartilage". The Latin term itself may have roots in the Greek word "kartiálagos", which also refers to cartilage.