HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Kidney glomerulus. Kidney glomerulus, light micrograph. This section, from the cortex of the kidney, shows the glomerulus (centre) encased in its Bowman's capsule (white arc). The glomerulus itself is a dense knot of blood capillaries where filtration of waste products from the blood takes place. The waste products are excreted in the urine. Around the Bowman's capsule are the proximal and distal tubules, where the re-absorption of useful substances back into the blood takes place. Magnification: x430 when printed 10 centimetres wide.
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