Organ of Corti. Coloured scanning electron micrograph of hair cells (yellow) in the organ of Corti in the inner ear. They are divided into outer hair cells (v-shaped rows) and inner hair cells (top). Hair cells are immersed in a fluid called endolymph and react to the pressure of sound waves with an undulatory motion. This motion stimulates a nerve ending in each group of hair cells which carries a signal to various parts of the brain via the cochlear nerve. The two types of hair cells are divided by the pillar cells (pink) seen here covered by microvilli (speckles). Magnification: x1,320 at 6x7cm size. x1570 at 4x5 inch size | |
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Crédit: | Science Photo Library / PHOTO INSOLITE REALITE & V. GREMET |
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