The term 'otic organ' refers to the EAR, which is a three-letter word. The EAR is an organ of the body that is responsible for hearing and balance. It is composed of three parts: the outer EAR, the middle EAR, and the inner EAR. The outer EAR consists of the pinna, which is the visible part of the EAR, and the EAR canal. The middle EAR contains the eardrum and three tiny bones called ossicles. The inner EAR contains the cochlea, which is filled with fluid and lined with tiny hairs that detect sound vibrations.