单词	statolith
释义	statolith /ˈstatəʊlɪθ / noun Zoology 1A calcareous particle in the statocysts of invertebrates, which stimulates sensory receptors in response to gravity, so enabling balance and orientation.They have these little statoliths or balance organs in the back of their head and we can section those and look under a microscope and have daily rings just like tree rings in a tree stump.... The combination of the statocysts and the statolith aids the mussel in maintaining equilibrium by sensing gravity. Thus, a model for gravitropism in stem-like organs is proposed in which F-actin modulates the gravity response by actively participating in statolith repositioning within the endodermal statocytes. 1.1 another term for otolith.
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