sacculus

sacculus
[ˈsakjʊlʊs]
noun
  1. (Anatomy)the smaller of the two fluid-filled sacs forming part of the labyrinth of the inner ear (the other being the utriculus). It contains a region of hair cells and otoliths which send signals to the brain concerning the orientation of the head
    (剖)(内耳迷路中的)球囊;小囊
    ■another term for saccule
    同 saccule
语源
  1. mid 18th cent.: from Latin, diminutive of saccus 'sack'
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