Essay On Innate Immune System

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Innate Immunity Assignment The immune system is a system of organic structures and methods inside a life form that guards against pathogens. The human immune system can be classified into two subdivisions, which are the innate immune system and the adaptive immune system. The innate or non-specific immune system is the body’s first line of defence against invading organisms. Whereas the adaptive or specific immune system works as a second line of defence and also provides protection against re-exposure to the same pathogen. The innate immune system has many anatomical attributes that function as barricades to infection. Even though these subdivisions of the immune system have their own specific functions, elements of the innate immune system has an effect on the adaptive immune system and vice versa. The specific immune system needs time to respond to an invading organism, whereas the non-specific immune system consists of defences that have the power to institute a response nearby and geared…show more content…
The anatomical barriers, secretory molecules and cellular components that make up the innate immune system are the squamous cells of the skin, sweat, columnar cells of the GI tract, tracheal cilia, mucus, saliva, tears, phagocytic cells in circulation, NK cells and K cells and components of blood serum. The innate immune system is responsible for attracting immune cells to the site of infection, activating the complement cascade, identifying and removing foreign particles throughout the body, triggering the adaptive immune response. The white blood cells of the innate immune system are comprised of Natural killer cells (NK cells), mast cells, basophils, eosinophils, macrophages, neutrophiles and dendritic

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