McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test

1. Review the animation and answer the following questions.

Ulcers are

A. sores in the lining of the stomach.
B. scar tissue that has built up in the stomach.
C. caused by a defect in the muscle at the gastroesophageal junction allowing gastric juices to move into the esophagus.
D. caused by a defective pyloric sphincter allowing material to move out of the stomach too rapidly.

2. The source of ulcers A. is drinking too much acidic fluids.
B. a blow to the stomach.
C. may be a bacteria called Helicobacter pylori.
D. is drinking too much milk.

3. Research indicates that Helicobacter pylori may play a role in ulcer formation because A. the bacteria can be isolated from open sores in the stomach.
B. antibiotic treatment to kill the bacteria has helped many ulcer patients.
C. the bacteria is not killed by the acidic conditions of the stomach.
D. other factors have been eliminated.

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