Reabsorption

How many of the following functions can be correctly correlated with loop of Henle ? A. Reabsorption of nearly all of the essential nutrients. B. Reabsorption in this segment is minimum. C. A significant role in the maintenance of high osmolarity of medullary interstitial fluid. D. Reabsorption of 70-80 percent of electrolytes and water. E. Conditional reabsorption of Na^(+) .

Assertion :- PTH is a hypercalcemic hormone which increases blood Ca^(++) levels. Reason:- PTH acts on bones and stimulates reabsorption of bone or demineralisation. PTH also stimulate reabsorption of Ca^(++) by renal tubules.