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Q: Arrange the parts of the intestines in the correct order (as passage of food).
  • A. duodenum, jejunum, ileum
  • B. jejunum, duodenum, ileum
  • C. ileum, jejunum, duodenum
  • D. jejunum, ileum, duodenum
Correct Answer: Option A - The digestive system starts with the mouth, followed by the food pipe or oesophagus that open into the stomach. Food moves to the small intestine, which is made up of three segments, i.e., the duodenum, jejunum and ileum. Enzymes released by the pancreas and bile from the liver are poured here. The duodenum is largely responsible for the continuing breakdown process whereas the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream.
A. The digestive system starts with the mouth, followed by the food pipe or oesophagus that open into the stomach. Food moves to the small intestine, which is made up of three segments, i.e., the duodenum, jejunum and ileum. Enzymes released by the pancreas and bile from the liver are poured here. The duodenum is largely responsible for the continuing breakdown process whereas the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream.

Explanations:

The digestive system starts with the mouth, followed by the food pipe or oesophagus that open into the stomach. Food moves to the small intestine, which is made up of three segments, i.e., the duodenum, jejunum and ileum. Enzymes released by the pancreas and bile from the liver are poured here. The duodenum is largely responsible for the continuing breakdown process whereas the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream.