The term 'Pierced Organ' refers to the human EAR. The EAR is a complex organ that is responsible for hearing and balance. It is made up of three parts: the outer, middle, and inner EAR. The outer EAR is the visible part of the EAR and is composed of the pinna, which is the fleshy part of the EAR, and the EAR canal. The middle EAR is an air-filled cavity that contains the eardrum and three tiny bones called ossicles. The inner EAR is a fluid-filled chamber that contains the cochlea, which is responsible for converting sound waves into nerve signals that are sent to the brain.