Which organ is located in the right upper quadrant (RUQ) of the abdomen?

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Multiple Choice

Which organ is located in the right upper quadrant (RUQ) of the abdomen?

Understanding abdominal quadrant anatomy helps you place organs by region. The right upper quadrant is dominated by the liver, which sits just under the right rib cage and fills most of that quadrant. The gallbladder lies on the inferior surface of the liver, reinforcing that area as the liver’s home base. The spleen is on the left side (left upper quadrant), the stomach is mainly on the left, and the descending colon is typically found in the left side of the abdomen. Because the liver is the primary organ occupying the RUQ, it is the correct answer.

Understanding abdominal quadrant anatomy helps you place organs by region. The right upper quadrant is dominated by the liver, which sits just under the right rib cage and fills most of that quadrant. The gallbladder lies on the inferior surface of the liver, reinforcing that area as the liver’s home base. The spleen is on the left side (left upper quadrant), the stomach is mainly on the left, and the descending colon is typically found in the left side of the abdomen. Because the liver is the primary organ occupying the RUQ, it is the correct answer.

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