The human body is provided with a number of natural barriers which protect it from all types of foreign invaders. These include: 1. Skin 2. Mucous Membrane 3. Chemical Factors 4. Commensal Organisms 5. Cellular Components 6. Some Proteins Involved in Non-Specific Defense 7. Inflammation. 1. Skin: The human body is externally covered by skin […]
Human Body’s Natural Barriers to Foreign Invaders
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5 Main Components of Human Immunity System
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The following points highlight the five main components of human immunity system. The components are: 1. Origin and Differentiation of Lymphocytes 2. The Major Histocompatibility Complex 3. Cytokines 4. Antigen 5. Antibodies. 1. Origin and Differentiation of Lymphocytes: In adults, all kinds of blood cells originate from bone marrow stem cells. These are distinguished into […]
Resistance of Human Body against Foreign Agents | Immunology
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In this article we will discuss about the resistance of human body against foreign agents. While the innate non-specific defense mechanisms are present in the body since birth, the acquired resistance develops in the body only in response to a foreign agent. Such resistance is effective only against the agent which evokes the response and […]
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