Unit 24 Check Your Recall

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Bile is produced by the____________and stored and concentrated in the__________________________.

1) Liver 2) Gallbladder

Salivary Amylase

Begin(s) carbohydrate digestion in the mouth.

Which of the following organs is not an accessory organ of digestion? a. Salivary glands. b. Gallbladder. c. Cecum. d. Pancreas.

Cecum

Micelles

Clusters of bile salts and digested lipids in the small intestine.

Explain the importance of emulsification in lipid digestion.

Emulsification physically breaks apart lipids into smaller droplets to give pancreatic lipase a greater surface area on which to work as it catalyzes lipid breakdown.

Bile Salts

Emulsifies/emulsify fats (absorbed in the ileum).

Pancreatic Lipase

Enzyme(s) that digest(s) lipids into free fatty acids and monoglycerides.

Chylomicrons

Protein-coated lipid droplets that are absorbed.

Pepsin

Protein-digesting enzyme(s) produced by the stomach.

Hydrochloric Acid

Required to activate pepsinogen.

Lacteal

Structure(s) into which lipids are absorbed.

T/F: Acinar cells are the exocrine portion of the pancreas.

True

T/F: Filiform papillae are keratinized projections from the tongue that help physically break down food.

True

T/F: The peritoneal cavity is located between the visceral peritoneum and the parietal peritoneum.

True

T/F: The pyloric sphincter regulates flow from the stomach to the duodenum.

True

T/F: The shortest segment of the small intestine is the duodenum.

True

T/F: The vermiform appendix is a blind-ended sac that contains lymphoid follicles.

True

Folds of the small intestinal mucosa are known as. a. microvilli. b. circular folds. c. intestinal crypts. d. villi.

Villi


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