Medical Coding

Answer: A - The external ear contains the auricle and external auditory canal, which leads up to the tympanic membrane. The tympanic membrane separates the outer ear canal from the middle and inner ear. The middle ear includes the incus, stapes, and malleus. The inner ear contains the cochlea, semicircular canals and Eustachian tube. This is where sounds waves are converted into nerve impulses, which are read by the brain.