explain how the human ear works???????
Answers
The sound waves are gathered by the outer ear and sent down the ear canal to the eardrum. The sound waves cause the eardrum to vibrate, which sets the three tiny bones in the middle ear into motion. The motion of the bones causes the fluid in the inner ear or cochlea to move.
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Answer:
Explanation:
1. OUTER EAR The part of ear which we see outside of the head is outer ear. It consist of broad part pinna and about 3cm long passage ear canal. At the end of ear canal, a thin, elastic and circular membrane, eardrum is present, which is also called tympanum or tympanic membrane.
2. MIDDLE EAR contains 3 small bones- hammer,anvil and stirr up which are connected with each other. One end of hammer is touching the eardrum and the free end of stirr up is touched to oval-Window of inner ear.
The lower part of middle ear has a narrow tube called eustachian tube going to the throat. It ensures that the air pressure inside the middle ear is the same as that on the outside.
3. INNER EAR has a coiled tube, cochlea. One side of cochlea is connected to middle ear through elastic membrane over the oval window. A liquid is filled in cochlea, which contains nerve cells that are sensitive to sound. The other side of cochlea is connected to auditory nerve going into the brain.