The cochlea site is located in the inner EAR and is responsible for hearing. It is made up of three parts: the outer EAR, the middle EAR, and the inner EAR. The outer EAR is composed of the pinna, which is the visible part of the EAR, and the EAR canal. The middle EAR contains the eardrum and the ossicles, which are three small bones that transmit sound vibrations to the inner EAR. The inner EAR is where the cochlea is located, and it is shaped like a snail shell. The cochlea is filled with fluid and lined with tiny hairs that detect sound vibrations and convert them into electrical signals that are sent to the brain. The answers to the crossword puzzle are EAR (3 letters), EBAY (4 letters), and INNEREAR (8 letters).