Coloured SEM of iris epithelial cells of the eye
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Coloured SEM of iris epithelial cells of the eye
Iris epithelium. Coloured scanning electron micrograph (SEM) of epithelial cells (green) lining the underside of the human iris. The upper layer of cells has been sectioned, revealing the tiny cytoplasmic melanin granules (red) which provide the iris with its pigmentation (colour). The iris is the coloured part of the eye which contracts and dilates to control the amount of light passing into the eye. Magnification unknown
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6422362
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Epithelial Epithelial Cell Epithelium Iris Magnified Image Melanin Microscopic Photos Pigment Pigmentation Sight Subjects Vision Visual Sense
EDITORS COMMENTS
This print showcases the intricate beauty of iris epithelial cells, providing a mesmerizing glimpse into the world of human vision. The coloured scanning electron micrograph (SEM) captures the underside of the iris, revealing a stunning array of green epithelial cells that line this vital part of our eye. Upon closer inspection, we can observe the upper layer of cells that has been delicately sectioned, exposing an enchanting sight - tiny cytoplasmic melanin granules in vibrant red hues. These granules are responsible for endowing the iris with its unique pigmentation and colouration. It is through this pigmentation that our eyes possess their individuality and charm. The iris plays a crucial role in regulating light entering our eyes by contracting or dilating accordingly. This dynamic ability allows us to adapt to varying levels of brightness and maintain optimal visual acuity in different environments. Magnified to an unknown extent, this SEM image offers us a rare opportunity to appreciate the microscopic wonders within our own bodies. It serves as a reminder not only of our incredible anatomical complexity but also highlights how even at such minuscule scales, beauty exists. Science Photo Library brings forth yet another awe-inspiring capture from nature's vast repertoire – an exquisite fusion between artistry and scientific exploration.
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