Peritubular capillaries

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Artery: Peritubular capillaries
Source Efferent arteriole
Branches Interlobular vein
Dorlands/Elsevier c_06/13477736

In the renal system, peritubular capillaries are tiny blood vessels that travel along side nephrons allowing reabsorbtion and secretion between blood and the inner lumen of the nephron.

Ions and minerals that need to be saved in the body are reabsorbed into the peritubular capillaries through active transport, secondary active transport, or transcytosis.

The ions that need to be excreted as waste are secreted from the capillaries into the nephron to be sent towards the bladder and out of the body.

The majority of exchange through the peritublar capillaries occurs because of chemical gradients, osmosis and Na+ pumps.

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