Drugs given orally are absorbed from the intestines into the blood of the portal vein. Before this vein empties into the general circulation, it passed through the ________
A) intestines
B) kidney
C) liver
D) skin
Answer: C
A) The portal vein does not pass through the intestines.
B) The portal vein does not pass through the kidney.
D) The portal vein does not pass through the skin.
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