what is the difference between inner and outer ear
Inner ear. innermost part of the vertebrate ear. Inner ear. The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear. In vertebrates, the inner ear is mainly responsible for sound detection and balance.
There are three components of the ear subserving hearing function: outer ear, middle ear, inner ear. The outer ear consists of the pinna, which collects sound waves, and the external auditory meatus, ending at the tympanic membrane. Internal to this tympanic membrane is the middle ear containing three bones, the malleus, incus and stapes.