#saccule__sacculus  a small sc or pouch (especially the smaller chamber of the membranous labyrinth)
  supertype:  #sac  a structure resembling a bag in an animal
  part of:  #membranous_labyrinth  the sensory structures of the inner ear including the labyrinthine receptors and the cochlea; contained within the bony labyrinth
     part of:  #inner_ear__innerear__internal_ear__labyrinth  a complex system of interconnecting cavities; concerned with hearing and equilibrium
        part of:  #auditory_apparatus  all of the components of the organ of hearing including the outer and middle and inner ears
           part of:  #auditory_system  the sensory system for hearing

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