Despite the long-held view that hoarding is a symptom of both obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD), increased evidence has emerged during the last 20 years suggesting that hoarding represents a distinct form of psychopathology.
The Inner Ear. Parts of the Ear: Outer Ear | Middle Ear | Inner Ear. The inner ear contains the sensory organs for hearing and balance. The cochlea is the hearing part of the inner ear. The semicircular canals in the inner ear are part of our balance system. The cochlea is a bony structure shaped like a snail and filled with two fluids (endolymph and perilymph). The Organ of Corti is the sensory receptor inside the cochlea which holds the hair cells, the nerve receptors for hearing.
The auricle and external acoustic meatus (or external auditory canal) compose the external ear. The external ear functions to collect and amplify sound, which then gets transmitted to the middle ear. The asymmetric shape of the external auricle introduces delays in the path of sound that assist in sound localization.