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Which one is NOT the function of P-cells in the collecting ducts? (1) Na+ reabsorption (2) K+ secretion (3) H2O reabsorption (4) H+ secretion The kidney’s collecting ducts play a […]

The mechanisms of regulation of H+ secretion by kidneys in acidosis have been suggested in the following statements: A. Acidosis inhibits the secretion of cortisol by adrenal cortex B. The […]

In kidney, Na+ is reabsorbed across the second half of proximal tubule due to positive transepithelial voltage (i.e., tubular fluid becomes positive relative to blood) and by other mechanisms. The […]

Desert animals have longer loop of Henle compared to that of humans. It may be due to the following reasons: A. Long loop of Henle is associated with greater amount […]

In the glomerular capillary (GC), fluid moves into Bowman’s capsule through its almost entire length. But in the muscle capillary (MC), fluid moves into interstitial space at its arteriolar end. […]

The difference in circulation between glomerular capillaries (GC) and true capillaries (TC) are described by a researcher in the following statements: A. The hydrostatic pressure in GC is higher than […]

In a healthy kidney given the following information: (A) Glomerular hydrostatic pressure — 75 mm Hg (B) Glomerular capillary colloid osmotic pressure — 40 mm Hg (C) Hydrostatic pressure in […]

Three forms of dextrans namely neutral, polyanionic and polycationic having different molecular radii were injected separately in three groups of rats. The concentrations of dextrans in glomerular filtrate were measured […]

16. Which one of the following cells in the renal corpuscle can influence glomerular filtration by its contraction? (1) Podocytes. (2) Endothelial cells of glomerular capillaries (3) Parietal epithelial cells […]

During urine formation the filtration of blood at the glomerulus is (1) an active process. (2) an osmotic process. (3) is a pressure-dependent physical process. (4) a non energy- mediated […]