The two collecting ducts that ultimately drain the lymphatic vessels are the
A) thoracic duct and right lymphatic duct.
B) lumbar duct and left lymphatic duct.
C) intestinal duct and left celiac trunk.
D) bronchomediastinal duct and subclavian duct.
E) thyrocervical trunk and bronchomediastinal duct.
A) thoracic duct and right lymphatic duct.
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The condition resulting from inadequate production of surfactant and the resultant collapse of alveoli is
A) respiratory distress syndrome. B) COPD. C) anoxia. D) pulmonary embolism. E) pneumothorax.
How does the renal countercurrent multiplier mechanism allow the creation of a concentrated urine?
A. By pumping NaCl and urea into the ascending limb of the loop of Henle, it raises the solute load, which turns into a concentrated urine once water is extracted from the collecting duct. B. When anti-diuretic hormone is present, it stimulates the pumping of NaCl from the medullary interstitial fluid and water follows, concentrating the urine. C. By concentrating NaCl in the renal medullary interstitial fluid, it allows water to be reabsorbed from the collecting ducts when vasopressin is present. D. It transports NaCl from the medullary interstitial fluid into the collecting duct, which directly increases the osmolarity of the urine. E. It transports urea from the medullary interstitial fluid into the collecting duct, which directly increases the osmolarity of the urine.
What does Benedict's reagent test for when analyzing amylase activity?
A) Presence of sugars B) Presence of protein C) Presence of lipids D) Presence of starch
Parathyroid hormone (PTH) is the most important regulator of calcium ion homeostasis of the blood
Indicate whether the statement is true or false