Question

Complete the sentences with the correct term (from above). The ______________ sphincter controls gastric emptying. Parasympathetic nerves ____________ GI motility and secretion. The intestinal _________________ increase the surface area for digestion and absorption of nutrients. The gallbladder concentrates and stores ______________, which is produced by the _____________. The major function of the colon is ____________ of water and electrolytes. Distention of the intestine by a bolus of food triggers ________________. The ____________ valve prevents backflow of large intestine contents into the small intestine. Sympathetic nerves innervate ______________ of the GI tract and ___________________ motility and secretion.

Answer 1

The pyloric sphincter controls gastric emptying. Parasympathetic nerves stimulate GI motility and secretion. The intestinal villi increase the surface area for digestion and absorption of nutrients. The gallbladder concentrates and stores bile, which is produced by the liver. The major function of the colon is reabsorption of water and electrolytes. Distention of the intestine by a bolus of food triggers peristalsis. The ileocecal valve prevents backflow of large intestine contents into the small intestine. Sympathetic nerves innervate smooth muscle of the GI tract and inhibit motility and secretion.

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