Chapter 24: Digestive System

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Dipeptides and tripeptides enter intestinal epithelial cells by __________. facilitated diffusion simple diffusion Na+ symport H+ symport

H+ symport

The chemical digestion of the disaccharides occurs in the ______. Small intestine Large intestine Mouth Stomach

Small intestine

Segmental contractions are mixing contractions that occur predominantly in the _________________. oral cavity large intestine esophagus stomach small intestine

Sml intestine

Shortly after a meal, the gallbladder contracts in response to stimulation by __________. secretin cholecystokinin histamine gastrin

cholecystokinin

The _____________ phase of gastric regulation is initiated when acidic chyme enters the duodenum and simulates the secretion of hormones and local reflexes that inhibit gastric activity. gastrointestinal cephalic laryngo-pharyngeal voluntary

gastrointestinal

Which component(s) of the pharynx are normally involved with digestion? nasopharynx and oropharynx oropharynx and laryngopharynx oropharynx only nasopharynx, oropharynx, and laryngopharynx

oropharynx and laryngopharynx


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