AP BIOLOGY

Detailed explanation-1: -What is the cochlea? Your cochlea is filled with fluid and shaped like a snail, tapering from a wide end called the base to a narrow head called the apex.

Detailed explanation-2: -The inner ear contains a group of interconnected, fluid-filled chambers. The snail-shaped chamber, called the cochlea (KOK-lee-uh), plays a role in hearing. Sound vibrations from the bones of the middle ear are transferred to the fluids of the cochlea.

Detailed explanation-3: -Your inner ear contains two main parts: the cochlea and the semicircular canals. Your cochlea is the hearing organ. This snail-shaped structure contains two fluid-filled chambers lined with tiny hairs.

Detailed explanation-4: -The middle ear is an air-filled chamber containing three small bones called ossicles. They connect the ear drum to the inner ear and are named the malleus, or hammer, incus, or anvil, and stapes, or stirrup. Normal hearing occurs when the sound waves pass through the ear canal and vibrate the ear drum.