BIOLOGY CH20 Organ Systems in Animals — Science STD 9 — Question
Tamilnadu BoardEnglish MediumSTD 9ScienceBIOLOGY CH20 Organ Systems in Animals2 Marks
Question
How is the small intestine designed to absorb digested food?
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Answer
Small intestine comprises three parts- duodenum, jejunum and ileum. Ileum is the longest part of the small intestine. It contains minute finger like projections called villi where absorption of food takes place. They are approximately 4 million in number. Internally, each villus contains fine blood capillaries and lacteal tubes.
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