Chapter 17 Digestive system part 2

  1. Gastric enzymes are secreted by the _____ cells.

    B) chief
  2. Proteins are digested or broken down by the _____ in the stomach.

    D) pepsin
  3. Parasympathetic stomach impulses cause all of the following except which one?

    B) secretion of somatostatin
  4. The alkaline tide occurs when _____ is secreted into the blood.

    B) bicarbonate ions
  5. The _____ duct directly receives the fluids from the gallbladder.

    C) cystic
  6. The common bile duct is formed by the merger of the hepatic and _____ ducts.

    B) cystic
  7. The ampulla of Vater is the area that joins the common bile duct to the _____ duct.

    C) pancreatic
  8. Bile facilitates digestion by causing the _____ of fats.

    D) emulsification
  9. Amylase could be found in all of these areas except which one?

    C) stomach
  10. Most of the absorption of nutrients occurs in the _____.

    B) jejunum
  11. Fatty acids and glycerol are released when _____ are broken down by liver or muscle cells.

    D) chylomicrons
  12. The ileocecal valve prevents chyme from entering the _____.

    D) large intestine
  13. The frenulum is the membrane attached to the inferior surface of the _____.

    A) tongue
  14. Which lymphatic areas are most commonly the sites of inflammation?

    C) palatine tonsils
  15. The _____ part of the stomach is the area connected to the esophagus.

    A) cardiac
  16. The _____ prevents food from entering the small intestine.

    A) pyloric valve
  17. What is the stimulus for cholecystokinin release?

    A) lipids
  18. What blocks pancreatic secretions from entering the duodenum?

    C) sphincter of Oddi
  19. Which of the following triggers the formation of the others?

    C) enterokinase
  20. Which of the following are NOT active in the duodenum?

    C) pepsin
  21. Secretin from the duodenum causes the pancreas to produce secretions rich in _____.

    C) bicarbonate
  22. Which of these is a hormone name?

    C) cholecystokinin
  23. The hormone which causes the pancreas to secrete an enzyme rich fluid is _____.

    B) cholecystokinin
  24. Which of the following vitamins is NOT stored in the liver?

    C) C
  25. Which of the following is NOT a function of the adult liver?

    C) erythropoiesis
  26. The liver contains special blood channels termed _____.

    B) sinusoids
  27. The Kupffer cells are phagocytic cells found in the _____.

    D) liver
  28. Which of the following acts to inhibit acid production?

    D) somatostatin
  29. Which area has the greatest amount of enzyme activity?

    A) duodenum
  30. The finger-like extensions inside the small intestine are called _____ and increase the surface area.

    B) villi
  31. Which salivary glands produce the most viscous saliva with lots of mucus?

    D) sublingual glands
  32. What initiates the swallowing reflex?

    B) sensory receptors detecting the bolus in the pharynx
  33. Intrinsic factor is secreted by which cells of the gastric glands?

    B) parietal cells
  34. The pancreas secretes enzymes that enter the small intestine and chemically digest chyme. Choose the enzyme(s) that break(s) down fats.

    A) pancreatic lipase
  35. What hormone does the small intestine release in response to acidic chyme?

    C) secretin
  36. How are the components of fats absorbed in the small intestine?

    C) Components of lipids diffuse through small intestinal cell membranes, are reconstructed in the cells, and then carried off by lacteals as chylomicrons
  37. The surface area of the stomach is enhanced by the presence of folds called _____.

    A) rugae
  38. The enterogastric reflex normally inhibits the further contraction of the stomach as the duodenum fills.
  39. What is the effect of the release of cholecystokinin on the pancreas?
    Pancreas releases more enzymes in the pancreatic juice
  40. Acid chyme is buffered by __________ secreted from the pancreas.
  41. Digestion of which of the following would be affected the most if the liver were severely damaged?

    A. Lipids
  42. Where is vitamin B12 is primarily absorbed?
  43. Bile is forced up the cystic duct through the closing of the

    A. sphincter of Oddi.
  44. What is the blood vessel in the middle of the liver lobule that receives blood from the hepatic sinusoids?

    A. Central vein
  45. This organ contains lobules with sinusoids lined with macrophages that lead to a central venous structure.

    C. Liver
  46. Damage to which of the following nerves would reduce GI secretions?

    C. vagus nerve
  47. When we ingest large, complex molecules such as lipids, carbohydrates and proteins, they must undergo catabolic reactions, whereby enzymes split these molecules into building block levels. This series of reactions is called:

    D. Chemical Digestion
  48. In the triad region, the branches of the hepatic portal vein and hepatic artery join to form what enlarged capillaries?
    hepatic sinusoids
  49. Which tunic of the GI tract is very vascular and has many nerves and glands?
Card Set
Chapter 17 Digestive system part 2
Chapter 17 Digestive system part 2