Tubular secretion
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. Together with the skin and the respiratory system, the kidneys are the body's primary excretory organs. The kidney is a highly specialized organ that maintains the internal environment of the body by selectively excreting or retaining various substances according to specific body needs. What is the difference between tubular reabsorption and tubular secretion. tubular reabsorption is movement of substances out of tubular lumen through tubular epithelium and interstitial fluid and into peritubular capillary. The kidneys are bean-shaped organs that lie retroperitoneal in the superior lumbar region. The medial surface is concave and has a renal hilus that leads into a renal sinus, where the blood vessels, nerves, and lymphatics lie. The Urinary System is a group of organs in the body concerned with filtering out excess fluid and other substances from the bloodstream. The substances are filtered out from the body in the form of urine. Urine is a liquid produced by the kidneys, collected in the bladder and excreted through the urethra. Introduction. The Urinary System is a group of organs in the body concerned with filtering out excess fluid and other substances from the bloodstream. The substances are filtered out from the body in the form of urine. Urine is a liquid produced by the kidneys, collected in the bladder and excreted through the urethra. Tubular secretion occurs from the epithelial cells that line the renal tubules and collecting ducts. It is the tubular secretion of H + and NH 4 + 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. The kidneys help regulate pH of the body fluids. The kidneys regulate the concentration of erythrocytes in the blood. The kidneys participate, with the skin and liver, in vitamin D synthesis. Urinary System Kidneys Each kidney is behind the peritoneum and surrounded by a renal capsule and a renal fat pad.
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what is secretion in renal system