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False-colour SEM of rod cells in human retina
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False-colour SEM of rod cells in human retina
False-colour scanning electron micrograph (SEM) of rod cells situated in the human retina. Two layers are visible here : one at top (pinkish) which has been severed while in the one below rods are still connected to their nuclei visible as soft purple spheres. About 130 million rod cells are situated in a retina and together with the cones (about 6.5 million and not visible here) represent the photosensitive cells in our eyes. Rod cells are considered to be receptors for night vision whereas cones are for daylight and colour vision. Magnification: x1450 at 6x7cm size
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Media ID 6422332
© PROF. P. MOTTA/DEPT. OF ANATOMY/UNIVERSITY LA SAPIENZA , ROME/SCIENCE PHOTO LIBRARY
Retina Rod Cell Rods Sight Vision Visual Sense False Coloured
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This print showcases the intricate world of rod cells in the human retina. Through false-colour scanning electron microscopy, we are granted a glimpse into this vital component of our visual system. The image reveals two distinct layers: one at the top, severed and displaying a mesmerizing pinkish hue, while below, rods remain connected to their nuclei, appearing as soft purple spheres. With approximately 130 million rod cells present in our retinas (not to mention the 6.5 million cones that aren't visible here), these photosensitive cells play an essential role in our ability to perceive light and darkness. Rod cells specifically serve as receptors for night vision, allowing us to navigate through dimly lit environments with enhanced sensitivity. Contrasting with rods' nocturnal function, cones take charge during daylight hours and enable us to experience vibrant colors. Together, these remarkable structures form the foundation of our visual sense. At a magnification level of x1450 on a 6x7cm print size, this photograph offers an awe-inspiring close-up view that unveils the intricacies within our own bodies. It serves as a testament to both the complexity and beauty found within every aspect of human anatomy – reminding us just how extraordinary our existence truly is.
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