17 If congestive heart failure has progressed to the point of venous congestion

Question

17 If congestive heart failure has progressed to the point of venous congestion in the systemic circuit kidneys will receive less blood flow; this would result in , the a. Increased aldosterone secretion b. Increased EPO secretion c. Decreased urine formation d. All of the above 18. How does blood pressure aid in the formation of urine? a. It regulates reabsorption of potassium b. It inhibits secretion of nitrogenous wastes c. The hydrostatic pressure in afferent capillaries favors the formation of glomerular filtrate d· The pressure of the blood favors reabsorption by contributing to osmotic pressure 19. The primary site of reabsorption of solutes within the nephron of the kidney is the a. Glomerulus b. Proximal convoluted tubule c. Collecting ducts d. Any of the above 20. Which of the following is NOT a homeostatic function of the kidney Regulation of blood volume Regulation of sodium and potassium in the blood Regulation of cardiac output Regulation of blood pH a. b. c. d. 21. The balanced exchange between chloride and bicarbonate a. Occurs as bicarbonate formed within the rbc exits into the plamsa b. Is a major function of kidney tubules in maintaining blood phH c. Keeps the alveoli of the lungs in acid-base balance d. Is a significant blood buffer system 22. Emphysema usually results in what type of acid-base imbalance? a. Respiratory acidosis b. Respiratory alkalosis c. Metabolic acidosis d. Metabolic alkalosis pB. 3

Explanation / Answer

19.pct is the main site for absorotion .90%of filtrates get absorbed here.

Glomerulusmainly fir filtration.collecting duct there is mainly secretion.

20regulation of sodium and potassium are not homeostatic mechanism.

21in emphysema thete is improper removal of co2.increase in co2 level in body and it leads to respiratory acidosis.

24 pco2 is regulated by respiratory system.so option A

25.trachea also has smooth muscle trachealis i netween ring of cartilage and bronchiole also has smooth muscle .so option B

27.po2 at alveoli is mote yhan tha of pulmonary arteiole and po2 at atisue level is less than that of artiolar blood.

So both statement incorrect.

29chemorecptor send signal to medulla .so optionB

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