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Ch. 25 - Microbial Diseases of the Digestive System
Tortora - Microbiology: An Introduction 14th Edition
Tortora14th EditionMicrobiology: An IntroductionISBN: 9780138200398당신이 사용하는 게 아니라요?교과서 변경
21장, 문제 4

Gastric ulcers are caused by
a. Stomach acid.
b. H. pylori.
c. Spicy food.
d. Acidic food.
e. Stress.

검증된 단계별 안내
1
Understand that gastric ulcers are lesions or sores that develop on the lining of the stomach.
Recognize that while stomach acid can contribute to ulcer formation, it is not the primary cause but rather a factor that exacerbates the condition.
Identify that Helicobacter pylori (H. pylori) is a type of bacteria that colonizes the stomach lining and is the main infectious agent responsible for causing most gastric ulcers.
Note that spicy food, acidic food, and stress may aggravate symptoms but are not direct causes of gastric ulcers.
Conclude that the correct cause of gastric ulcers among the options given is the bacterium H. pylori.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Helicobacter pylori and Gastric Ulcers

Helicobacter pylori is a type of bacteria that infects the stomach lining and is the primary cause of most gastric ulcers. It damages the protective mucous layer, allowing stomach acid to irritate the tissue, leading to ulcer formation.
추천 영상:
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Role of Stomach Acid

Stomach acid (hydrochloric acid) aids digestion but can damage the stomach lining if protective mechanisms fail. While acid contributes to ulcer symptoms, it is not the root cause; rather, it exacerbates damage initiated by factors like H. pylori infection.
추천 영상:
03:44
Acids

Misconceptions about Ulcer Causes

Common beliefs such as spicy food, acidic food, and stress causing ulcers are largely myths. These factors may worsen symptoms but do not cause ulcers directly. Understanding this helps differentiate between causes and aggravating factors.
추천 영상:
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