____ is a circular muscle that acts as a valve, opening and closing to allow the gastric contents to move throughout the GI tract.

a) Connective tissue
b) The lumen
c) A sphincter
d) The rectum


Ans: c) A sphincter

Nutritional Science

You might also like to view...

The best time to buy affordable fresh fruits and vegetables is:

a. daily to ensure freshness. b. when they are in season. c. when they are reduced for clearance. d. early in the morning when they are first delivered to the store.

Nutritional Science

LDL cholesterol is associated with plaque buildup in the arteries of the heart

Indicate whether the statement is true or false

Nutritional Science

The type of metabolism required for exercise that lasts more than 2 minutes is:

a. aerobic. b. anaerobic. c. oxidative. d. endurance.

Nutritional Science

Matching

A. B. Parity C. D. E. F. G. Gravida H. I. J.

Nutritional Science