Name the organs of hearing in our body.
Name the organs of hearing in our body.
The ear is the sense organ that helps us to hear. The cochlea is a spiral shell-shaped part in the inner ear that is responsible for the sense of hearing.
1) The shape of the outer part of the ear is like a funnel. The other part of the ear is called Pinna and is attached to about 2 to 3-centimetre long passage called ear canal.
2) At the end of the ear canal, a thin, elastic and circular membrane called an eardrum is stretched tightly.
3) There are three small and delicate bones called hammer, anvil and stirrup in the middle part of the ear which is linked to one another.
4) One end of hammer touches the eardrum and its other end is connected to the second bone anvil.
5) The other end of the anvil is connected to the third bone called stirrup. And the free end of stirrup touches the membrane over the oval window.
6) The inner part of the ear has a coiled tube called cochlea. One end of the cochlea is connected to the middle part of the ear through the elastic membrane over the oval window. The cochlea is filled with liquid. The liquid present in cochlea contains nerve cells which are sensitive to sound. The other end of the cochlea is connected to auditory nerve which goes into the brain. The three tiny bones in the middle part of ear act as a system of levers and amplify sound vibrations coming from the eardrum before passing them on to the inner part of the ear.
The ear is the sense organ that helps us to hear. The cochlea is a spiral shell-shaped part in the inner ear that is responsible for the sense of hearing.
1) The shape of the outer part of the ear is like a funnel. The other part of the ear is called Pinna and is attached to about 2 to 3-centimetre long passage called ear canal.
2) At the end of the ear canal, a thin, elastic and circular membrane called an eardrum is stretched tightly.
3) There are three small and delicate bones called hammer, anvil and stirrup in the middle part of the ear which is linked to one another.
4) One end of hammer touches the eardrum and its other end is connected to the second bone anvil.
5) The other end of the anvil is connected to the third bone called stirrup. And the free end of stirrup touches the membrane over the oval window.
6) The inner part of the ear has a coiled tube called cochlea. One end of the cochlea is connected to the middle part of the ear through the elastic membrane over the oval window. The cochlea is filled with liquid. The liquid present in cochlea contains nerve cells which are sensitive to sound. The other end of the cochlea is connected to auditory nerve which goes into the brain. The three tiny bones in the middle part of ear act as a system of levers and amplify sound vibrations coming from the eardrum before passing them on to the inner part of the ear.
