Answer is Outer ..inner.
The outer ear is composed of the earlobe (pinna) and ear canal. The earlobe collects sound (hence its characteristic shape) and directed it via the rea canal where it hits and vibrates the eardrum. The middle ear amplifies the sound and transmits it to the inner ear ( comprised of the bony labyrinth, a hollow cavity in the temporal bone of the skull with a system of passages) that has mechanoreceptors that convert the mechanical action of the sound to a nerve impulse.
