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Which of the following is a characteristic of pancreatic digestive enzyme function?


A) The major hormone controlling the release of pancreatic enzymes is gastrin
B) The release of pancreatic enzymes is controlled primarily by a pancreatic sphincter
C) The pancreas can increase the activity of fat-degrading enzymes in response to more fat in the diet
D) In general,the amounts of digestive enzymes secreted by the pancreas remain constant over a wide range of nutrient intakes

E) All of the above
F) B) and C)

Correct Answer

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Jim went for his annual medical check-up and was diagnosed with heartburn.Which of the following actions is most likely causing Jim's condition?


A) Inhibition of peristalsis
B) Overactive cardiac sphincter activity
C) Overactive pyloric sphincter activity
D) Defective lower esophageal sphincter activity

E) A) and D)
F) All of the above

Correct Answer

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What structure separates the colon from the small intestine?


A) Pylorus
B) Ileocecal valve
C) Gastric retainer
D) Rectal sphincter

E) None of the above
F) B) and D)

Correct Answer

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What is the general composition of lymph?


A) A light-red fluid that stores fat-soluble vitamins
B) A transparent yellowish fluid that contains no red blood cells or platelets
C) A white fluid that contains probiotics and appears at the site of infections
D) A greenish fluid that contains abundant platelets and water-soluble vitamins

E) B) and C)
F) A) and C)

Correct Answer

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Which of the following substances functions to control the release of hydrochloric acid to prevent excessive acidity?


A) Fiber
B) Gastrin
C) Secretin
D) Bicarbonate

E) C) and D)
F) A) and C)

Correct Answer

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Which part of the GI tract contains highly acidic digestive juices?


A) Colon
B) Ileum
C) Stomach
D) Duodenum

E) B) and D)
F) C) and D)

Correct Answer

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What structure controls the passage of material from the small intestine to the large intestine?


A) Pyloric valve
B) Ileocecal valve
C) Colonic sphincter
D) Jejunal sphincter

E) A) and D)
F) B) and C)

Correct Answer

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Which of the following products of digestion is NOT normally released directly into the bloodstream?


A) Fats
B) Minerals
C) Vitamin C
D) Carbohydrates

E) A) and C)
F) A) and D)

Correct Answer

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In general,which of the following is associated with the fewest adverse effects from the treatment of constipation in adults?


A) Taking an enema
B) Taking a laxative
C) Ingestion of prunes
D) Ingestion of mineral oil

E) C) and D)
F) B) and C)

Correct Answer

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Which of the following is a function of sphincter muscles?


A) Control peristalsis
B) Grind large food particles
C) Secrete digestive juices into the GI tract
D) Control the passage of food through the GI tract

E) A) and D)
F) B) and C)

Correct Answer

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Jenny has just has undergone a cholecystectomy.After recovery,Jenny will no longer


A) be able to manufacture bile.
B) have an extra reservoir for bile.
C) be able to digest carbohydrates.
D) have an extra reservoir for pancreatic juices.

E) C) and D)
F) A) and B)

Correct Answer

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The presence of fat in the intestines stimulates cells of the intestinal wall to release


A) lipase.
B) gastrin.
C) secretin.
D) cholecystokinin.

E) B) and D)
F) B) and C)

Correct Answer

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What substance controls the release of bile into the small intestine?


A) Gastrin
B) Secretin
C) Prozymogen
D) Cholecystokinin

E) A) and D)
F) B) and D)

Correct Answer

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What is one function of the pyloric sphincter?


A) Secretes acid into the stomach
B) Secretes hormones into the stomach
C) Prevents the contents of the small intestine from backing up into the stomach
D) Prevents the contents of the small intestine from emptying too quickly into the colon

E) B) and C)
F) A) and B)

Correct Answer

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Which of the following is a function of the intestinal microvilli?


A) Secretion of bile salts
B) Secretion of digestive acid
C) Transport of nutrient molecules
D) Transport of pancreatic enzymes

E) B) and C)
F) A) and B)

Correct Answer

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