Under which of the following conditions do cell volumes not change and the osmolarity in both extracellular and intracellular fluids remain the same?
A) hypovolemia
B) osmotic equilibrium
C) hypervolemia
D) hypotonicity
E) hypertonicity
Ans: B) osmotic equilibrium
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The rotatores:
A) have a relatively large mechanical advantage for producing trunk rotation. B) possibly function primarily as "kinesiological monitors" or organs of proprioception. C) are part of the erector spinae group of muscles. D) are attached to the transverse processes of a pair of consecutive vertebrae. E) when acting bilaterally, can produce trunk flexion.
Elevated HCO3- levels brought about by vomiting is classified as
A. metabolic alkalosis. B. respiratory alkalosis. C. respiratory acidosis. D. metabolic acidosis.
How does an increase in body temperature affect the oxyhemoglobin-dissociation curve?
A. It causes a shift to the right. B. There is no effect. C. It causes a shift to the left. D. None of the choices are correct.
The portal vein is formed by the merger of the
A. gastric and splenic veins. B. inferior mesenteric vein (IMV) and gastric vein. C. splenic vein and superior mesenteric vein (SMV). D. inferior mesenteric vein (IMV) and splenic vein.