gravireceptor


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grav·i·re·cep·tor

(grav'i-rĕ-sep'tŏr)
A highly specialized receptor organ and nerve ending in the inner ear, joints, tendons, and muscles that give the brain information about body position, equilibrium, direction of gravitational forces, and the sensation of "down" or "up."
[L. gravis, heavy, + receptor]
References in periodicals archive ?
The dose response curve has a typical sigmoidal shape, again indicating the involvement of a physiological gravireceptor in contrast to a passive orientation in the water column.
One option for an active gravireceptor is an intracellular statolith exerting pressure on a sensor, as has been proposed for gravitropism in higher plants.
Gravitaxis in the flagellate Euglena gracilis is controlled by an active gravireceptor. J.