Immune Response[edit | edit source]

Introduction[edit | edit source]

The immune response is the activity of the immune system in recognizing and defending against foreign substances (antigens) such as bacteria, viruses, and other pathogens.

Types of Immune Response[edit | edit source]

Diagram illustrating the immune response.

There are two main types of immune responses:

Innate Immune Response: The non-specific first line of defense that acts quickly upon infection.
Adaptive Immune Response: A specific response that develops over time, involving the production of antibodies.

Components of the Immune System[edit | edit source]

The immune system is composed of various cells and organs, including:

White blood cells (leukocytes)
Lymph nodes
The spleen
Bone marrow

Mechanism of Action[edit | edit source]

The immune response involves various steps:

Recognition of antigens
Activation of immune cells
Elimination of pathogens
Development of immunological memory

Innate Immune Response[edit | edit source]

Characteristics of the innate response include:

Immediate action
Involvement of physical barriers like skin and mucous membranes
Activation of phagocytes and natural killer cells

Adaptive Immune Response[edit | edit source]

Features of the adaptive response include:

Delayed but more specific response
Involvement of T cells and B cells
Production of antibodies
Development of immunological memory

Importance in Health and Disease[edit | edit source]

The immune response is crucial in protecting against infections and diseases. Dysregulation of the immune response can lead to allergies, autoimmune diseases, and immunodeficiencies.

Immunizations[edit | edit source]

Vaccines work by stimulating the immune response to develop immunity without causing the disease.

References[edit | edit source]

External Links[edit | edit source]

Immune response Resources
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