Quiz 10 - Digestive

The muscularis externa layer in the wall of the digestive tract is

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The muscularis externa layer in the wall of the digestive tract is

composed of a layer of circular smooth muscle fibers and a layer of longitudinal smooth muscle fibers.

Which of the following list would be considered parts/functions of the jejunum?

Mucosa, villi, lacteals, most absorptive area for nutrients

Damage to the liver would hamper digestion of

Arrange the following structures in order from the small intestine to the rectum.
(1) ascending colon
(2) descending colon
(3) sigmoid colon
(4) transverse colon

Enzymes that digest carbohydrates include

amylase, maltase, and sucrase

Abdominal organs that lie against the body wall and have no mesenteries are said to be

Retropertioneal

What moves the bolus during the esophageal phase of deglutition?

Intrinsic factor

facilitates the absorption of vitamin B12

The formation of HCl in the stomach involves the

active transport of hydrogen ions from parietal cells into the lumen of the stomach

The distention of the stomach by food is the primary stimulus to begin the

gastric phase of gastric secretion.