Cochlea, light micrograph

Cochlea, light micrograph

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Light micrograph (LM) of a section through the cochlea. The cochlea is a tapering, fluid-filled spiral cavity 3.5cm long. Two membranes run the length of the spiral & divide it into 3 parallel ducts. In each coil, the upper membrane is tissue- thin; the lower, or basilar membrane, is thicker. The ducts they form are easily seen. In the middle duct, on the basilar membrane, is the Organ of Corti, where sensory hair cells react to sound & convert it into electrical signals which travel to the brain via the cochlear nerve. Magnification: x100 at 10cm size.

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Keywords: biological, biology, cochlea, cochleas, color image, ear, ears, hearing, histology, human biology, human body, inner ear, inner ears, light micrograph, lm, micrograph, microscopic, microscopy, nervous system, organ of corti.

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