Wally decides to go on a hunger strike to further one of his favorite causes. After many days with nothing but water you would expect to observe
A) elevated levels of glucocorticoids.
B) ketone bodies in his urine.
C) lowered blood pH.
D) All of the answers are correct.
E) None of the answers is correct.
Answer: D
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A severely dehydrated patient begins to experience the formation of random blood clots. Why is this happening?
A. Dehydration stimulates vasospasms, which in turn lead to clot formation. B. Dehydration leads to a concentration of clotting factors, which triggers the intrinsic mechanism of coagulation. C. Dehydration collapses the capillaries and exposes collagen, which triggers the extrinsic mechanism of coagulation. D. Dehydration leads to a concentration of clotting factors, which triggers the extrinsic mechanism of coagulation.
Deoxygenated venous blood leaves the liver through the _____, which carries it to the inferior vena cava.?
A) ?hepatic vein B) ?hepatic portal vein C) ?mesenteric veins
Eyelids serve two purposes: one is to protect the eye and the other is to
A. help distribute blood to the eye surface. B. help distribute lacrimal fluid to cleanse and lubricate the surface. C. help spread antiviral solution. D. help to control the transmission of the nerve impulse to the retina. E. prevent excess mucus from obscuring vision.
It may take nearly a half hour for rods of the retina to regenerate a full supply of photopigment during the process of
A. dark adaptation. B. light adaptation. C. lateral inhibition. D. opsinization.