OVERVIEW OF THE IMMUNE SYSTEM
THE GOOD BAD AND UGLY OF THE IMMUNE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The transplanted skin is damaged, making the immune system nonfunctional.
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The antigens of the replacement skin are the same as those of the damaged skin.
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Burn victims lose so much blood that white blood cells cannot cause an immune response.
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here is no blood supply to the skin, so mixing of antigens does not occur.
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Detailed explanation-1: -Which statement best explains why the transplanted skin is not rejected? the antigens of the replacement skin are the same as those of the damaged skin.
Detailed explanation-2: -Allergy occurs when a person reacts to substances in the environment that are harmless to most people. These substances are known as allergens.
Detailed explanation-3: -An inflammatory response begins when a pathogen stimulates an increase in blood flow to the infected area. Blood vessels in that area expand, and white blood cells leak from the vessels to invade the infected tissue. These white blood cells, called phagocytes engulf and destroy bacteria.
Detailed explanation-4: -Phagocytes are a type of white blood cell that move by amoeboid action. They send out pseudopodia which allows them to surround invading microbes and engulf them. Phagocytes release digestive enzymes which break down the trapped microbes before they can do any harm. This process is called phagocytosis.