Nutrition ch. 3 terms.txt

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jlue93
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207696
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Nutrition ch. 3 terms.txt
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2013-03-16 20:09:15
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  1. Cells lining the digestive tract replace themselves every
    3 days.
  2. The primary organ of digestion and absorption is the
    small intestine.
  3. Which of the following is not one of the major storage systems which store and release nutrients to meet the cells' needs between meals?
    pancreas
  4. One of the stomach's main functions is part of the digestion of what nutrient?
    protein
  5. Nutrients are delivered from the intestines through the circulatory system to the cells by
    transport through the blood to the liver for chemical altering to make them better suited for use by the tissues.
  6. The digestive juices in the small intestine include:
    pancreatic juice which neutralizes stomach acids reaching the small intestine.
  7. As the villi in the small intestine are exposed to nutrients
    they will preferentially absorb a greater percentage of deficient nutrients.
  8. What structure prevents food from entering the trachea when you swallow?
    epiglottis
  9. In what organ does the digestion process begin?
    mouth
  10. Which of the following is a description of chyme?
    A semiliquid mass of partially digested food released by the stomach into the small intestine
  11. Which of the following is a feature of peristalsis?
    It consists of wavelike muscular contractions resulting from alternate tightening and relaxing of circular muscles and longitudinal muscles
  12. Which of the following is a function of sphincter muscles?
    Control the passage of food through the GI tract
  13. What substance protects the stomach lining from damage due to digestive juices?
    mucus
  14. What is the function of bile?
    emmulsifies fats
  15. When the pancreas detects a high concentration of the blood's sugar, glucose, it releases
    insulin
  16. When consumed on a regular basis, which of the following foods promotes healthful changes of the microflora of the GI tract?
    yogurt
  17. A bolus is conducted past the diaphragm through the
    esophagus
  18. Immediately after absorption, what circulatory system carries the fat-soluble vitamins and large fats?
    lymphatic
  19. Among the cells' most basic needs are _____ and the oxygen with which to burn it.
    energy
  20. What is mastication?
    the act of chewing

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