The middle ear consists of the eardrum and three tiny bones. The bones called the Malleus, Incus, and the Stapes are often referred to as the hammer, anvil, and stirrup. Sound from the outer ear causes the eardrum to vibrate. The vibrations are then passed all the bones, to the inner ear.
A part called the cochlea has tiny “hairs” that change sounds into signals. The signals travel along the hearing nerve to the brain. The brain interprets the signal as sound and creates the sense of hearing!
The ear consists of your externa; ear (the part you see) and ear canal. Sound is gathered from the environment and travels down the ear canal to the eardrum.