Complement activation
(a) Stimulates inflammation
(b) Attracts phagocytes
(c) Enhances phagocytosis
(d) Achieves a, b, and c

검증된 단계별 안내

Understand that complement activation is part of the immune system's defense mechanism, involving a series of proteins that enhance the ability to clear pathogens.

Recognize that complement activation can stimulate inflammation by promoting the release of chemical signals that increase blood flow and attract immune cells to the site of infection.

Know that complement proteins can attract phagocytes, such as macrophages and neutrophils, by acting as chemoattractants, guiding these cells to the site where pathogens are present.

Understand that complement activation enhances phagocytosis by opsonization, where complement proteins coat pathogens, making them easier for phagocytes to recognize and engulf.

Conclude that since complement activation stimulates inflammation, attracts phagocytes, and enhances phagocytosis, the correct comprehensive answer is the option that includes all these effects.

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주요 개념

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

Complement System

The complement system is a group of proteins in the blood that, when activated, enhance immune responses. It plays a key role in defending against pathogens by promoting inflammation, attracting immune cells, and marking targets for destruction.

Inflammation

Inflammation is the body's response to injury or infection, characterized by redness, heat, swelling, and pain. Complement activation stimulates inflammation by releasing molecules that increase blood flow and recruit immune cells to the affected area.

Phagocytosis and Chemotaxis

Phagocytosis is the process where immune cells engulf and digest pathogens. Complement proteins enhance phagocytosis by tagging microbes and attract phagocytes through chemotaxis, guiding them to the site of infection for efficient clearance.

Complement activation(a) Stimulates inflammation(b) Attracts phagocytes(c) Enhances phagocytosis(d) Achieves a, b, and c