Digestive System Question with Answer

11. Mechanical digestion begins in the:

  1. small intestine
  2. large intestine
  3. mouth
  4. stomach

12. Chemical digestion of starch foods begins in the

  1. small intestine
  2. large intestine
  3. mouth
  4. stomach

13. Chemical digestion of protein begins in the

  1. small intestine
  2. large intestine
  3. mouth
  4. stomach

14. Which of the following is NOT a secretory cell in the alimentary canal?

  1. Kupffner cell
  2. Chief cell
  3. Mucous cell
  4. Parietal cell

15. The correct sequence for the layers within the wall of the alimentary canal from inside to outside is

  1. submucosa, mucous membrane, serous layer, muscular layer
  2. serous layer, muscular layer, mucous membrane, submucosa
  3. mucous membrane, muscular layer, serous layer, submucosa
  4. mucous membrane, submucosa, muscular layer, serous layer

16. What are the 3 major salivary glands?

  1. parotid, submaxillary, and submandibular
  2. parathyroid, submandibular, and submaxillary
  3. parotid, submandibular, and sublingual
  4. parotid, submaxillary, and sublingual

17. The purpose of the intestinal villi is to

  1. secrete mucous to facilitate the movement of chyme through the alimentary canal
  2. increase surface area for nutrient absorption
  3. secrete serous fluid to decrease friction among the organs
  4. push the fecal matter into the rectum

18. When the stomach is empty, it folds up into wrinkles called

  1. rugae
  2. chyme
  3. shincters
  4. bolus

19. What breaks food into smaller pieces to begin mechanical digestion?

  1. amylase
  2. teeth
  3. stomach
  4. esophagus

20. The liver functions to

  1. destroy damage red blood cells
  2. All of the choices are correct
  3. store vitamin D
  4. form glucose from noncarbohydrates

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