Balancing stone from inner ear. Coloured scanning electron micrograph (SEM) of crystals of calcium carbonate on the surface of an otolith. An otolith or otoconium is a calcified stone that is found in the otolith organs of the inner ear. They are attached to sensory hairs,and,when the head tilts,the stones' movement causes nerve impulses that allow a sense of balance and orientation to be maintained. In humans,otoconia range from 3-30 microns (millionths of a metre) across. Magnification unknown | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nishinaga, Susumu |
Taille de l’image : | 2881 px × 3474 px |
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