outline+the+path+of+a+sound+wave+through+the+external,+middle+and+inner+ear+and+identify+the+energy+transformations+that+occur

ç ç External ear è è The pinna pulls the sound waver down and then travels down in to the canal of the Tympanic membrane, vibration then occurs in the tympanic membrane at the same frequencies as the sound that leads to the middle ear.

ç ç Middle ear è è The Sound travels through the first ossicle which is attached to the tympanic membrane (the ear drum), the ossicle begins to vibrate this amplifies the vibration and the vibration gets passed to the other two ossicles inter the inner ear.

ç ç Inner ear è è

After the last vibration from the last ossicle it is then passed to the oval window. The Oval window begins to vibrate and creates a fluid substance which is inside the cochlea to vibrate. The hair cells inside the cochlea Detects the vibrations inside the cochlea and passes a message to the brain. Different sound’s( e.g. Screaming, whispering etc) move the organ of corti in many different ways , this allows the brain to identify what sound it is.

Shown below is a usfull diagram of the external middle and internal ear and the definition of each parts of the ear below. (image and definitions taken of [] ) 

Malleus (hammer ) : first ossicle of the middle ear.
 * External, middle, internal ear ** : one of two organs of hearing on the sides of the head, comprised of internal and external parts.
 * External ear ** : visible part of the ear.
 * Auricle ** : outer part of the external ear.
 * External auditory meatus ** : canal of the temporal bone that carries sounds to the eardrum.
 * Eardrum ** : membrane of the external ear that transmits air vibrations to the middle ear.
 * Internal ear ** : deepest part of the ear.
 * Semi-circular canans ** : crescent-shaped tubes.
 * External ** : semicircular tube closest to the external ear.
 * Posterior ** : middle semicircular tube.
 * Anterior ** : semicircular tube deepest in the ear.
 * Vestibuli ** : cavity of the internal ear.
 * Cochlea ** : part of the internal ear that converts sound vibrations to nerve impulses.
 * Auridory nerve ** : nerve related to hearing.
 * Eustachian tube ** : canal that allows equalization of air pressure on both sides of the eardrum.
 * Middle ear ** : part of the ear between the internal and external ears.
 * Stapes (stirrup) ** : ossicle of the middle ear connected to the incus.
 * Incus (anvil) ** : middle ossicle of the middle ear.
 * External acoustic meatus ** : canal of the temporal bone that carries sounds to the eardrum.

Below is a summary of the external middle and internal ear : []