#umbo  a slight rounded elevation where the malleus attaches to the eardrum
  supertype:  convex_shape__convexity  a shape that curves or bulges outward
  part of:  eardrum__tympanum__tympanic_membrane__myringa  the membrane in the ear that vibrates to sound
     part of:  ear  the sense organ for hearing and equilibrium
        part of:  auditory_system  the sensory system for hearing
        part of:  vestibular_apparatus__vestibular_system  organs mediating the labyrinthine sense; concerned with equilibrium
        part of:  head__caput  the upper or front part of the body in animals; contains the face and brains; "he stuck his head out the window"
           part of:  animal__animate_being__animatebeing__beast__brute__creature__fauna  a living organism characterized by voluntary movement

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