Small intestine function?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Small intestine function?

Explanation:
Absorbing nutrients is the primary job of the small intestine. Its lining is folded into villi and microvilli, which massively increase surface area to move nutrients—like monosaccharides, amino acids, fatty acids, vitamins, minerals, and water—into the bloodstream or lymphatic system. Digestion of carbohydrates does occur there through brush-border enzymes, but the key outcome is that those nutrients are absorbed rather than simply broken down. Bile is produced by the liver, not the small intestine, and helps fat digestion in the intestine. Immune activity exists in the gut as well, but the main function described here is nutrient uptake.

Absorbing nutrients is the primary job of the small intestine. Its lining is folded into villi and microvilli, which massively increase surface area to move nutrients—like monosaccharides, amino acids, fatty acids, vitamins, minerals, and water—into the bloodstream or lymphatic system. Digestion of carbohydrates does occur there through brush-border enzymes, but the key outcome is that those nutrients are absorbed rather than simply broken down. Bile is produced by the liver, not the small intestine, and helps fat digestion in the intestine. Immune activity exists in the gut as well, but the main function described here is nutrient uptake.

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