Best Answer: The nephron's cup shaped Bowmans Capsule surrounds a knot of blood capillaries called the glomerulus. Much of the bloods fluid filters into the glomerulus due to pressure from the circulatory system. Left behind are large proteins and whole cells, which are too large to fit through.
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Tubular secretion occurs from the epithelial cells that line the renal tubules and collecting ducts. It is the tubular secretion of H+ and NH4+ from the blood into the tubular fluid (i.e. urine - which is then excreted from the body via the ureter, bladder, and urethra) that helps to keep blood pH at its normal level.
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The loop of Henle, lie in the medulla of the kidney, the other parts of the nephron lie outside of the medulla in the cortex. Salt is actively transported out of the filtrate, and since this area impermeable to water, water cannot follow the ions out here.
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Describe the purpose of tubular secretion in kidney physiology. 1  The substance that remains in the collecting duct of the kidneys following reabsorption is better known as urine.  Tubular secretion is the transfer of materials from peritubular capillaries to renal tubular lumen and occurs mainly by active transport.
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This filtrate is then passed through the nephron tubule, which has 4 main parts ( proximal convoluted tubule, loop of Henle, distal convoluted tubule, and the collecting duct). In the proximal convoluted tubule, a considerable amount of resorbtion occurs. Small proteins, glucose, and ions are returned to the blood by active transport. Negatively charged ions follow passively, followed by the osmosis of water. About 75% of the filtrate is returned in this section of the nephron.
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A system of the kidneys that consists of a series of tubules and ducts, connecting the nephrons to the ureter. The inside space of a tubular structure, such as an artery or intestine. Tiny blood vessels that travel alongside nephrons, allowing reabsorption and secretion between blood and the inner lumen of the nephron.
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1 Tubular secretion is the transfer of materials from peritubular capillaries to renal tubular lumen and occurs mainly by active transport.  It is the tubular secretion of H+ and NH4+ from the blood into the tubular fluid that helps to keep blood pH at its normal level.
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In the DCT. The water, urea, and salts contained within the ascending limb of Henle eventually pass into the distal convoluted tubule (DCT). The DCT reacts to the amount of anti-diuretic hormone (ADH) in the blood: The more ADH is present in the blood, the more water is re-absorbed into it.
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Tubular secretion is the transfer of materials from peritubular capillaries to renal tubular lumen. This secretion is caused mainly by active transport. Usually only a few substances are secreted. These substances are present in great excess, or are natural poisons.
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1 The substance that remains in the collecting duct of the kidneys following reabsorption is better known as urine.  Tubular secretion is the transfer of materials from peritubular capillaries to renal tubular lumen and occurs mainly by active transport.
https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/urinary-system-25/physiology-of-the-kidneys-240/tubular-secretion-1175-412/
where does secretion occur in nephron
Secretion occurs in Inner lumen of nephron. The Secretion occurs Inner Lumen in Nephron.