Practice Questions on the Digestive System
Page 3

  1. Which of the following does not produce digestive enzymes?
    1. Pancreas
    2. Small Intestine
    3. Salivary glands
    4. Stomach
    5. Liver

  2. Which of the following cell types is NOT present in the stomach?
    1. Mucous neck cells
    2. Chief cells
    3. Parietal cells
    4. Epithelial cells
    5. Alpha cells

  3. Which of the following is NOT produced by the exocrine pancreas?
    1. Amylase
    2. Carboxypeptidase
    3. Trypsinogen
    4. Pepsinogen
    5. Chymotrypsinogen

  4. Which of the following is the central component of the liver lobule?
    1. Bile canaliculus
    2. Hepatic artery
    3. Central vein
    4. Portal vein
    5. Portal space

  5. Which of the following statements concerning the liver lobule is true?
    1. Portal triads are at the center of the lobule
    2. Blood flows from the center to the periphery of this lobule
    3. Bile flows from the center to the periphery of this lobule
    4. All of the above
    5. 2 of the above

  6. Intrinsic factor is produced by which of the following cells?
    1. Chief cells
    2. Paneth cells
    3. Enteroendocrine cells
    4. Parietal cells
    5. Mucous neck cells

  7. Which of the following induces contraction of gallbladder smooth muscle?
    1. Secretin
    2. Cholecystokinin
    3. Serotonin
    4. Gastrin
    5. Somatostatin

  8. Which of the following is not a component of gastric juice?
    1. Hydrochloric acid
    2. Mucus
    3. Pepsin
    4. Amylase
    5. Water

  9. Which of the following is true of the liver?
    1. Hepatocytes synthesize many of the blood proteins such as albumin and antibodies
    2. Hepatocytes synthesize 80% of the bile in the body with the other 20% coming from the pancreas
    3. The liver receives more nutrient-rich blood than oxygen-rich blood
    4. The liver is the 2nd largest gland in the body

  10. Pepsinogen is synthesized and released by which of the following?
    1. Parietal cells
    2. Enteroendrocrine cells
    3. Paneth cells
    4. Chief cells
    5. Pancreatic acinar cells

  11. Which of the following pairs of hormones are mainly involved in controlling pancreatic exocrine secretions?
    1. Insulin and glucagon
    2. Cholecystokinin and secretin
    3. Somatostatin and gastrin
    4. Motilin and serotonin
    5. Glucagon and somatostatin

  12. Which of the following organs does not have both endocrine and exocrine function?
    1. Stomach
    2. Small Intestine
    3. Gallbladder
    4. Liver
    5. Pancreas

  13. Which of the following cell types would not be found in lamina propria of a villus?
    1. Endothelial cell
    2. Smooth muscle cell
    3. Lymphocyte
    4. Plasma cell
    5. Goblet cell


  14. The function of the hepatic portal circulation is to:
    1. Carry toxins to the venous system for disposal thru the urinary tract
    2. Collect absorbed nutrients for metabolic processing or storage
    3. Hormone distribution
    4. Transfer bile to the liver from the pancreas

  15. Which of the following is true?
    1. There are 27 primary teeth, none of which are molars
    2. There are 24 primary teeth and no new primary teeth appear after 13 months
    3. There are 20 primary teeth and most children have all of them by 24 months of age
    4. There are 32 primary teeth

  16. Peristaltic waves are:
    1. Segmental regions of the GI tract
    2. Churning movements of the GI tract
    3. Pendular movements of the GI tract
    4. Waves of muscular contractions that propel contents from one point to another
    5. Circular contractions of the GI tract muscularis mucosae

  17. If you eat a meal of french fries, buttered toast, ice cream, and whole milk, which of the following glands would secrete the most enzymes that would be involved in digesting all this food?
    1. Liver
    2. Exocrine pancreas
    3. Endocrine pancreas
    4. Ileum
    5. Buccal Glands

  18. Which of the following is true of the small intestine?
    1. Site of carbohydrate and protein but NOT fat digestion
    2. Site of the majority of water absorption in the GI tract
    3. First site of protein hydrolysis
    4. All of the above
    5. None of the above

  19. If you compared the blood entering the liver and the blood leaving the liver, you find that:
    1. Blood leaving the liver has more glucose
    2. Blood leaving the liver contains more oxygen
    3. Blood leaving the liver contains fewer amino acids
    4. Blood leaving the liver contains more toxins and less carbon dioxide

  20. Chemical digestion reduces large molecules to simpler compounds by the process of:
    1. Mastication
    2. Dehydration synthesis
    3. Metabolism
    4. Anabolism
    5. Catabolism

  21. Which of the following is NOT characteristic of the colon?
    1. Lacks villi
    2. Contains teniae coli
    3. Longer than the small intestine
    4. Contains a submucosa
    5. Contains fat filled appendages of unknown function

  22. Digestive processes in the large intestine include:
    1. Mass peristalsis
    2. Absorption of some vitamins and electrolytes
    3. Elimination of cellulose-based material
    4. All of the above
    5. 2 of the above


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