Secretion takes place in the renal tubules of the kidney. Specifically, it occurs in the proximal convoluted tubule, distal convoluted tubule, and collecting ducts. These structures are responsible for selectively moving substances like drugs, ions, and waste products from the blood into the urine for excretion.
Proximal and Distal tubes
Secretion and absorption processes primarily occur in the digestive system. Secretion of digestive enzymes and acid takes place in the stomach, pancreas, and small intestine, while absorption of nutrients occurs mainly in the small intestine through its lining known as villi.
This type of epithelium is frequently found in glands, and the pancreas, where its function is secretion.
Aldosterone acts on the distal convoluted tubule and collecting duct in the kidney to increase sodium reabsorption and potassium secretion.
Glucose reabsorption takes place in the proximal renal tubule. This tubule is a portion of the nephron that contains fluid. The functions of the nephron include the reabsorption and secretion of various substances like ions, glucose, and amino acids.
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Glomerulus
Secreation of (H+)in kidney
It takes place in a part of the kidney called the nephron.
Proximal and Distal tubes
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filtration, reabsorption and secretion
Nephrons
An example of secretion is the release of digestive enzymes by the pancreas into the small intestine to aid in the digestion of food.
The urea and water that make up urine are removed from the blood in the kidneys through the process of filtration, reabsorption, and secretion. Specifically, this takes place in the structures of the nephrons within the kidneys.
Tubular secretion occurs in the distal convoluted tubes. The secretion also happens in the collecting ducts and also in the proximal convoluted tubule.
The mechanism of urine formation takes place by three steps. they are glomerular filtration, tubular reabsorption and tubular secretion.