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metal prints kidney metal prints glomerulus metal prints glomeruli metal prints podocyte metal prints podocytes metal prints capillary metal prints medulla metal prints renal corpuscle metal prints pedicel metal prints pedicels metal prints urinary system metal prints human body metal prints sem metal prints scanning electron micrograph metal prints coloured metal prints

photographs kidney photos glomerulus photos glomeruli photos podocyte photos podocytes photos capillary photos medulla photos renal corpuscle photos pedicel photos pedicels photos urinary system photos human body photos sem photos scanning electron micrograph photos coloured photos

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Kidney glomerulus (podocytes and capillaries of the renal corpuscle), coloured scanning electron micrograph (SEM). The glomerulus consists of a tightly coiled network of capillaries surrounded by podocytes. There about 1 million glomeruli in each kidney. Podocytes have narrow cell extensions (processes) that in tern give rise to secondary extensions called pedicels. The podocytes completely surround the capillary system. As blood passes through each glomerulus, water and metabolic wastes are filtered through capillary walls by the surrounding podocytes. About 100 litres of blood are filtered every hour. The water and waste pass into the lumen of the Bowman's capsule. From the capsule the water and waste drains into the surrounding tubules where reabsorption occurs. Magnification: x800 when shortest axis printed at 25 millimetres.

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