What are the three parts of the ear?
Parts of the ear [edit] Outer ear (pinna, ear canal, surface of ear drum) The outer ear is the most external portion of the ear. The outer ear includes the pinnae (also called auricle), the ear canal, and the very most superficial layer of the ear drum (also called the tympanic membrane). In humans, and almost all vertebrates, the only visible portion of the ear is the outer ear. Although the word “ear” may properly refer to the pinna (the flesh covered cartilage appendage on either side of the head), this portion of the ear is not vital for hearing. The complicated design of the human outer ear does help capture sound (and imposes filtering that helps distinguish the direction of the sound source), but the most important functional aspect of the human outer ear is the ear canal itself. Unless the canal is open, hearing will be dampened. Ear wax (medical name – cerumen) is produced by glands in the skin of the outer portion of the ear canal. This outer ear canal skin is applied to cart
