EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
Kidney glomerulus. Coloured scanning electron micrograph (SEM) of a healthy kidney, showing a glomerulus (red and yellow), a coiled ball of specialised capillaries. The function of the glomerulus is to filter waste products from the blood. After reabsorption of certain substances, including amino acids, elsewhere in the kidney, the liquid is transported to the bladder as urine.
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