NORMAL GASTROINTESTINAL FUNCTION

NORMAL GASTROINTESTINAL FUNCTION is a topic covered in the Harrison's Manual of Medicine.

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ABSORPTION OF FLUID AND ELECTROLYTES

Fluid delivery to the GI tract is 8–10 L/d, including 2 L/d ingested; most is absorbed in small bowel. Colonic absorption is normally 0.05–2 L/d, with capacity for 6 L/d if required. Intestinal water absorption passively follows active transport of Na+, Cl, glucose, and bile salts. Additional transport mechanisms include Cl/HCO3 exchange, Na+/H+ exchange, H+, K+, Cl, and HCO3 secretion, Na+-glucose cotransport, and active Na+ transport across the basolateral membrane by Na+,K+-ATPase.

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Citation

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TY - ELEC T1 - NORMAL GASTROINTESTINAL FUNCTION ID - 623688 ED - Fauci,Anthony S, ED - Hauser,Stephen L, ED - Jameson,J Larry, ED - Kasper,Dennis L, ED - Longo,Dan L, ED - Loscalzo,Joseph, BT - Harrison's Manual of Medicine UR - https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623688/all/NORMAL_GASTROINTESTINAL_FUNCTION PB - McGraw Hill Inc. ET - 19 DB - Harrison's Manual of Medicine DP - Unbound Medicine ER -