Anatomy and Physiology 2e: The Small and Large Intestines

What is the primary digestive organ in the body?

• Stomach

• Small Intestine

• Large Intestine

• Esophagus

What is the length of the small intestine in a living person?

• 1 meter

• 3 meters

• 5 meters

• 10 meters

What are the three regions of the small intestine?

• Duodenum, Jejunum, Ileum

• Stomach, Duodenum, Ileum

• Jejunum, Ileum, Cecum

• Duodenum, Ileum, Cecum

What is the function of circular folds in the small intestine?

• Increase surface area for absorption

• Facilitate peristalsis

• Produce mucus for digestion

• Secrete digestive enzymes

What is the function of villi in the small intestine?

• Increase surface area for absorption

• Facilitate peristalsis

• Produce mucus for digestion

• Secrete digestive enzymes

What is the function of microvilli in the small intestine?

• Increase surface area for absorption

• Facilitate peristalsis

• Produce mucus for digestion

• Secrete digestive enzymes

What is the main arterial supply to the small intestine?

• Superior mesenteric artery

• Inferior mesenteric artery

• Hepatic artery

• Renal artery

What is the function of intestinal juice?

• Digest proteins

• Digest carbohydrates

• Facilitate absorption

• Produce mucus

What is the role of Peyer's patches in the small intestine?

• Absorb nutrients

• Produce digestive enzymes

• Prevent bacteria from entering the bloodstream

• Secrete mucus

What is the function of the ileocecal sphincter?

• Regulate flow of bile and pancreatic juice

• Absorb water

• Prevent backflow into the ileum

• Produce intestinal juice