Reabsorption is the process by which water and solutes that have been filtered out of the blood capillaries are taken back into the bloodstream. It primarily occurs in the capillaries surrounding nephrons in the kidneys, ensuring essential nutrients and water are retained by the body.
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The process by which blood pressure forces water and other substances through a semi-permeable barrier from one region to another, typically from capillaries into the nephron tubules.
Capillary exchange: The transfer of water, oxygen, carbon dioxide, nutrients, and waste products between blood in capillaries and surrounding tissues.