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20. The duodenum is ...
a. the section of the small intestine directly
connected with the stomach
b. the section of the small intestine directly
connected with the large intestine
c. the tube which leads from the pancreas to the
small intestine
d. the tube which leads from the liver to the small
intestine​

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STRAWHATPIRATEGO

ANSWER: A. The section of the small intestine directly connected with the stomach

Explanation:

The duodenum is the first division of the small intestine which directly connected to the stomach. This portion is approximately 25-30 cm long and nearly completes a 180° arc that curves within the abdominal cavity. Necessary nutrients such as the calcium, phosphorus, riboflavin, copper, iron, magnesium, and Vit A,D,E,and K were absorbed in this portion.

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