The human ear is divided into three sections known as the outer, middle and inner ear. The first section, known as pinna or auricle, is the only easily visible part.
The second section is made up of three small bones that carry sound vibrations from the eardrum to the inner ear. These bones are called malleus, incus, and stapes. The last section includes the actual hearing organ, called the cochlea, which is a very complex system of membranous cells; the inner ear, also known as the labyrinth, is made by two parts: one bony, one membranous.