Match the different responses of the body to an antigen attack to their appropriate systems.

In question, options are not given but I found options from some other sources. Here are the options.

1. Innate Immune System

2. Integumentary System

3. Lymphatic System

4. Adaptive Immune System

A. phagocytosis of antigens by macrophages

B. production of antibodies against the antigen

C. drainage of fluid containing antigens by capillaries

D.protective barrier covering internal organs

1.Innate immune system: A. phagocytosis of antigens by macrophages

The innate immune system is always general and nonspecific, and work as a 1st line defense. Whenever it identifies any foreign or non-self particles, for example antigens, phagocytosis occurs. It engulfs and kills antigens with the help of macrophages and the Innate immune system is activated.

2. Integumentary system: D.protective barrier covering internal organs

The integumentary system is a basic protection system in the immune system. It gives a protective barrier to not enter any foreign particle or antibody in the internal body. If there is an antigen enters the body, it is killed by phagocytosis.

3. Lymphatic system: C. drainage of fluid containing antigens by capillaries

The lymphatic system plays an integral role in immune function for the drainage of fluid containing antigens. It is the first line of defense against disease. This is a network of vessels and nodes transports and filters lymph fluid containing antibodies and lymphocytes that fight with antigen.

4.Adaptive immune system: B.production of antibodies against the antigen

After the exposure to an antigen, adaptive immune system is activated. This happens when the innate immune response is insufficient to control infection. It produces antibodies for specific antigen and begins to develop the memory for antigen.

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