Ear External Ear Diagram Bones. Outer ear ear canal eardrum tiny bones in the middle ear cochlea auditory nerves. The ear canal or external auditory meatus is approximately 125 inches long and 25 inch in diameter.
The tragus helix and the lobule. Malleus incus and stapes. There are three different parts to the outer ear.
Crus of the helix.
Part of the skull in which the inner ear is located. The ear canal and outer cartilage of the ear make up the. Ossicles 3 tiny bones that are attached malleus or hammer long handle attached to the eardrum incus or anvil the bridge bone between the malleus and the stapes stapes or stirrup the footplate. The middle ear space houses three little bones the hammer anvil and stirrup malleus incus and stapes which conduct sound from the tympanic membrane to the inner ear.