MLSHAPPL: Ears

• Pinna/ Auricle


  Collects sound waves and channels it into the ear canal
• External Auditory Meatus


  Transfer function from the sound at the entrance of the ear canal to the eardrum
• External auditory canal


  Entryway for sound waves towards the tympanic membrane
• Tympanic Membrane


  Separates the outer ear from the middle ear, collects the vibration and transfers it to the tiny bones of the ear
• Malleus


  Relay vibration of the incoming sound waves produced by eardrums to incus
• Incus


  Transmits vibrations from malleus to the stapes
• Stapes


  Transferring mechanical energy to the fluid-filled inner ear
• Semicircular Canals


  Detects the head's rotational position and helps in balance
• Vestibule


  Provide the sense of balance and the information about body position
• Cochlea


  Sense of hearing and processing of auditory transduction
• Vestibulocochlear/ auditory nerve


  Transform vibration into electrical impulses
• Round window


  Transmission of sound into cochlea
• Eustachian tube/ Auditory Tube


  Equalize air pressure between the atmosphere and the middle ear
• Label the Parts

  A) Cochlea

  B) Stapes

  C) Incus

  D) Maiieus

  E) Concha

  F) Helix

  G) Scapha

  H) Triangular fossa

  I) Antihelix

  J) Auricular lobule

  K) Eustachian tube

  L) Tympanic membrane

  M) Tympanic cavity

  N) Vestibular nerve

  O) External acoustic meatus