What is the most common cause of peptic ulcer dise

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ATI LPN Test Bank

What is the most common cause of peptic ulcer disease?

A. High-fat diet B. Stress C. Helicobacter pylori infection D. Alcohol consumption

Correct Answer: C

Rationale: Helicobacter pylori is the most common cause of peptic ulcers, damaging the mucosal barrier, making C correct.

The submucosa differs from lamina propria by having:

A. fewer white blood cells B. less lymphatic tissue C. larger blood vessels D. thicker and more prominent collagen fibers

Correct Answer: C

Rationale: The submucosa has larger blood vessels compared to the lymphocyte-rich lamina propria.

The mesentery and lining of the peritoneal cavity, like the outermost layer of the digestive tract, consist of:

A. a mucous membrane, or mucosa B. a serous membrane, or serosa C. a submucous membrane, or submucosa D. an endothelial membrane, or endothelium

Correct Answer: B

Rationale: The mesentery and peritoneal lining are serosa, not mucosa, secreting serous fluid.

The whitish tips of filiform papillae consist of:

A. keratinized epithelial tissue B. collagen C. mucous D. taste buds

Correct Answer: A

Rationale: The whitish appearance results from keratinized stratified squamous epithelium.

Lymphatic vessels within intestinal villi, which transport lipids to the circulatory system, are called:

A. capillaries B. ductules C. canaliculi D. lacteals

Correct Answer: D

Rationale: Lacteals absorb dietary lipids within villi.

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