The LES contracts to prevent stomach contents from returning to the

A) glottis. B) upper esophageal sphincter.
C) esophagus. D) epiglottis.


Answer: C

Nutritional Science

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A team of scientists extracts a chemical that they call "Zombia" from the leaves of a common houseplant. One of the scientists would like to market Zombia as a dietary supplement because it makes people sleepy, when it is injected into them. Based on this information, Zombia ________.

A. can be marketed as a dietary supplement, but only if it is promoted as a conventional food item B. can be marketed as a dietary supplement because it is from a plant C. cannot be marketed as a dietary supplement because its source is widespread in nature D. cannot be marketed as a dietary supplement

Nutritional Science

Which of the following organs is not an accessory organ of the digestive system?

A. Gallbladder B. Liver C. Brain D. Pancreas

Nutritional Science

In what cellular organelle are proteins synthesized?

A) cell membrane B) mitochondria C) nucleus D) ribosome

Nutritional Science

After intestinal resection, the absorptive efficiency of the intestine is improved through _____

a. intestinal adaptation b. enzyme replacement therapy c. following a high-fiber diet d. further surgery e. hormonal stimulation

Nutritional Science