Sally the sound wave and how the ear works!!

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Sally the sound wave and how the ear works!!
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  • Hello people. I am Mr Fell (Aka) The goat. Today i am going to teach you about the ear and sally the soundwave
  • Does anybody know where the ears are?
  • Now lets move onto the structure.
  • Well done lad!
  • 
  • Sir we cant see sally the sound wave because sound waves are invisible. We can only hear them.
  • Ear helps us to hear sounds around us and it is located on either side of our heads.
  • The Pinna a flap of skin collects sound waves and funnels them into the ear canal
  • Structure of human ear
  • The Auditory ossicles are small bones that carry the vibrations from the eardrum to the cochlea. They amplify the vibrations . These bones are called the hammer, the anvil , and the stirrup .
  • The ear canal is the tube that connects the pinna to the Ear drum
  • Sound waves that travel through the ear canal makes the ear drum to vibrate
  • The ear drum is the soft membrane that seperates the inner ear and outer ear
  • The cochlea is a spiral shaped chamber that is filled with liquid and lined with miniscule hairs . it converts the vibrations into electrical signals .
  • The Auditory nerve connects the cochlea to the brain . it caries the electric signals to the brain
  • Sir, our ears plays a vital role.... But what if someone loses there hearing ability?
  •  A Hearing aid is a device used to help people whose hearing power is lost. Hearing aids can fit on or in the ear so that it will amplify the sound using electronics
  • For this we have hearing aids..
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