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6 July, 07:12

Which of the following apply to the small intestine? Select one: a. Secretions from the liver and pancreas enter this organ. b. Segmentation contractions occur in this organ.

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  1. 6 July, 08:19
    0
    Answer: Option "a" and "b" apply to small intestine

    Explanation:

    Small intestine is a gastrointestinal tract organ where most of the absorption of nutrients and minerals from food occur. Bile and pancreatic juice pass via the pancreatic duct to the small intestine to promote digestion.

    Proteins, carbohydrates and fats undergo digestion in the small intestine with the aid of enzymes secreted by pancreas and liver.

    Segmentation contractions are a type of intestinal movement in which circular muscles of the intestines contract. This process mixes food with digestive juices and thus, promotes food absorption.
  2. 6 July, 11:08
    0
    A

    Explanation:

    Secretions from the liver and pancreas enters the small intestine through a segment of the intestine called the duodenum. The secretions aid in the final and complete digestion processes. The lipid digestion is aided in the small intestine through the secretions by emulsifying fats and completing necessary steps.

    However B which contains segmental contractions is a peristaltic movement (found also in the oesophagus) isn't peculiar to the small intestine. The large intestine also experiences this.
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