51.9 MB (5.0 MB compressed)
4961 x 3656 pixels
41.9 x 31.0 cm ⏐ 16.5 x 12.2 in (300dpi)
MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph (SEM) of a glomerulus in the human kidney; the top part of the Bowman's capsule (the cup-like covering) has been revoved to show the coiled mass of underlying capillaries which comprise the glomerulus. The glomerulus forms the primary part of the nephron, the functional unit of the kidney, and is the site of primary filtration of waste products from the blood into the kidney tubules. Waste products are drained from the kidneys in urine, filtered blood being returned to the general circulation. In addition to waste extraction, the kidneys maintain the salt balance within the body. Magnification: X 300 (6x7), X 142 (35mm).
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