human hearing

sound waves enter ear and hit the

ear drum a thin typanic membrane causing it to vibrate

then these vibrations go to the 3 tiny bones called ossicles which are

the hammer the anvil the stirrup

the ossicles job is to

amplify and transmit sounds to inner ear

after ossicles vibration passes through semi-circular canals and to cochlea who`s job is to

transmit vibrations into electrical signals

the electrical signals get carried to brain by the

auditory nerve

human hearing range is

20-20000 hertz

human hearing is limited because of

shape and size of ear drum

structure of internal parts which vibrate to transfer energy from sound wave