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The Innate Immune Response - Essay Example

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Summary to essay on topic "The Innate Immune Response"
The immune system is a protective mechanism, which saves us from the adverse impacts of potentially harmful viruses. The molecules on the surface of viruses, cells, fungi or bacteria, known as antigens send across a signal to the immune system. Subsequently the immune system reacts to the situation and tries to destroy the pathogens containing these antigens…
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Download file "The Innate Immune Response" to see previous pages... The defense mechanism is categorized in three types;
i. External barriers, comprising of skin, nostril hairs etc. which tries to prevent the pathogens from entering the body. In fact the external barriers include physical, mechanical and chemical barriers. For example, skin and nostril hairs are termed as physical barriers; tears and extraction from genitourinary tract are the form of mechanical barriers.
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Similarly secretion of skin, eyes, oral cavities and respiratory tracts in the form of sweat, tears, saliva, and mucus containing anti-microbial peptides are the form of chemical barriers.
As the term 'innate' suggests, the innate immune system is the inherent immune system we are born with. In fact some antigens are also present in our body, but the defense mechanism learns to live with it and together with these types of proteins, the immune system gains strength over time. The innate immune system is entrusted with;
The type of innate immunity system, available in the form of protein chemical is known as 'innate humoral immunity'. Body's complement system, interferon and interleukin are some of the examples of such a system. The complement proteins together with interferon and antibodies form the all important white blood cells in the body. The complement system is a defense mechanism involving a group of more than 30 interacting soluble plasma proteins. These cell proteins provide the early warnings by way of triggering inflammation and synthesis of enzymes, so that reproduction and multiplication of viruses can be blocked.

Allergies and inflammation are the forms of innate immune response. Redness, swelling, heat and pain are some of the initial responses of the immune system against the infection. The innate immunity system tries to highlight the ferocity of the pathogens by such actions. The inflammation occurs when tissues are injured by bacteria, trauma, heat or toxins. The damaged tissues release some chemicals like histamine, serotonin or bradykinin. These chemical substances in turn cause the blood vessels to leak fluid into the tissues, which causes swelling. This helps in taking appropriate response e.g. medication and precaution. The innate immune response is generated by the white blood cells, natural killer cells (NK cells) and T ...Download file "The Innate Immune Response" to see next pagesRead More
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