PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY
Inner ear. False-colour scanning electron micrograph of bundles of ciliated hair cells (pink) situated in the macula utriculi within the human inner ear. They are responsible for maintaining equilibrium and the detection of directional and positional movement such as the tilting of the head. These hair cells are immersed in a fluid, called the endolymph, and are connected to the vestibular nerve. Currents in this fluid displace the position of the hair cells resulting in the production of pulses which are sent to the brain via the vestibular nerve. Magnification: x3550 at 6x7cm size.
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