The ear comprises 3 distinct areas: 1) External ear: flag and
auditory canal from 2 to 3 as in length,
covered with small cilia (pilose filaments). The end of this
channel is in the
membrane of tímpano. 2) Medium ear: the tímpano box containing air at atmospheric pressure and is linked to rhinopharynx by a channel, a French Horn of Eustatius. There are 3 holes in the walls covered bone middle ear: the membrane tímpano,
window oval and round window. Between the membrane of tímpano oval window and there are 3 ossículos articulated with each other, forming a chain of transmission of mechanical vibrations: hammer, anvil and estribo. 3) Internal ear: constituted by 2 different structures, the cochlea and the labyrinth. The cochlea, in the shape of a snail, holds the transducer wave of sound that arrives to the oval window, transforming it into electrical impulse to send auditory center in the brain via the auditory nerve. In the cochlea is the basilar membrane and the organ of Corti. The maze, one of those responsible for the balance, consists of the semicircular canals, the sáculo and utrículo, sending information to the brain via the
Upper and lower vestibular nerve.
More abstracts about the Secrets of Voice - Anatomy of the apparatus Auditory