HUMAN SENSES(section.2)

Listener senses
Even though we have ears to hear,but not all voices can wen listen.we only be heard at a frequency of between 20-20000 vibrations/second (Heartz/Hz).

The parts and functions of the ear
Auricle
Serves to capture the sound from the outside,the sounds were captured at the ear hole continue through to the ear drum.then vibrate in accordance with accep table amount of vibration that the ear leaf.
Middle part of bone consist of bone hammer,bone foundation,and bone sanggurdi,there bone is called the bones of the middle.function receiving votes in catch by ear.this section there eustachius channel that connects the middle ear with a cavity mouth,its function to equalize air pressure between the outer ear to the middle.
Consists of the inner ear,casement elliptic,circular,three semi circular canal,and cochlea.on the cochlear nerve endings are hering and balance the body's tool.