The hearing organ in mammals is a spiraling structure called the "cochlea" from the Greek word for snail. It spirals out from the saccule (one of the balance organs). There are two and a half turns in ...

The illustration shows a cross-section of part of the cochlea, the fluid-filled part of the inner ear that converts vibrations from incoming sounds into nerve signals that travel to the brain via ...

The brain may play a role in helping the ear regulate its sensitivity to sound and compensate for hearing loss by sending a signal to a structure in the inner ear known as the cochlea, according ...

Sound waves enter the ear canal and cause the eardrum to vibrate. Three small bones transmit these vibrations to the cochlea. These bones transmit most efficiently frequencies of 1 kHz to 3 kHz.