Test: GRE Subject Test: Biology

A patient presents to the hospital with the complaint of pain in his abdomen. Imaging reveals ulcers in his upper small intestine. Further tests reveal that the ulcers are caused by acid entering the small intestine not being properly neutralized.

1.

What organ in the digestive system is malfunctioning, causing these acidic secretions to harm the small intestine?

Liver

Stomach

Pancreas

Gall bladder

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