Cochlea, Organ Of Corti, Sem #2
by Oliver Meckes EYE OF SCIENCE
Title
Cochlea, Organ Of Corti, Sem #2
Artist
Oliver Meckes EYE OF SCIENCE
Medium
Photograph - Photograph
Description
This image shows the organ of Corti of the cochlea. It is opened to show the positions of the cells. The rows of the outer hair cells (OHC with Stereocilia or Stereovilli, red/white) are clearly visible as the tectorial membrane, which usually is connected with the tips of the stereocilia has lifted up during preparation. One can see the cylindrical shape of the outer hair cells (red) and the very long extensions of the Deiter's cells (inbetween, beige). The outermost area left are the "Hensen cells". Nerve fibers on the base of the outer hair cells are colored violet. Inner hair cells are visible at the outer right. The organ of Corti lies in the entire length of the cochlea. Close to the oval window the hair cells of the organ of Corti are sensitive to high tones, while towards the tip of the cochlea they are sensitive to lower tones. The tectorial membrane is connected to the tips of the hair cells’ stereovilli, which causes these stereovilli to shift and stretch when there is sound pressure. These distractions are converted into electrical impulses that are sent to the brain. Scanning electron micrograph; magnification 2000x (at 15 cm image width).
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May 19th, 2021
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