title: The controversial cupula and the enigmatic kinocilium.
mesh_terms: D002923:Cilia / Q000502:physiology; D003051:Cochlea / Q000502:physiology* / Q000648:ultrastructure; D003053:Cochlear Duct / Q000033:anatomy & histology / Q000502:physiology*; D003599:Cytoskeleton / Q000502:physiology; D006801:Humans; D007761:Labyrinthine Fluids / Q000502:physiology; D008954:Models, Biological