Sound waves travel through the canal of the external ear...
		and vibrate the ear drum...
		which divides the external ear from the middle ear.
		The middle ear's 3 small bones (Malleus, Incus and Stapes)...
		transmit the energy of sound vibrations to the fluids of the inner ear.
		Vibrations in this fluid stimulate the delicate nerve hair cell fibres.
		Finally, the hearing nerve transmits impulses or signals to the brain to be interpreted as understandable sound.