depth study

• Collects sounds waves and channels them into the ear canal where the sound is amplified


  pinna
• in the ear canal, sound waves cause vibration in the ear drum, which triggers movement of the hair cells in the inner ear, called the cilia. The cilia discharge electrical impulses that are routed through the auditory nerve to the brain
• A membrane located at the end of the ear canal that vibrates and moves when sound waves hit it

  eardrum
• what is in the middle ear 


  auditory ossicles, three small moveable bones that connected to the eardrum and one another and are called malleus, incus, and staples
• the eardrum is also called the tympanic membrane and is a thin membrane that separates between the outer and middle ear
• As the eardrum moves, it vibrates the small ossicles to amplify the vibrations of sound waves.
• Hammer, Anvil, Stirrup


  otherwise known as Malleus, Incus, Staples
• Eustachian Tube

  A tube connecting the middle ear to the nasal and mouth area
• function of the eustachian tube: to equalise the pressure of either side of the eardrum.