The anatomy of the human auditory system comprises several anatomical structures that capture sound waves and transmit them inward. Sound waves initially enter the auditory canal. The visible external ear includes the pinna, which leads to the tympanic membrane (eardrum). Beyond this are the ossicles, which consist of the malleus, incus, and stapes. Further inward, a close-up of the inner ear reveals additional structures, including the semicircular canals, utricle, saccule, oval window, cochlea, basilar membrane, and hair cells.