PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Specific immunity produced by B cells that produce antibodies that circulate in body fluids
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Immunity that is present before exposure and effective from birth. Responds to a broad range of pathogens.
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type of immunity produced by T cells that attack infected or abnormal body cells
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None of the above
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Detailed explanation-1: -The innate immune system is the body’s first line of defense against germs entering the body. It responds in the same way to all germs and foreign substances, which is why it is sometimes referred to as the “nonspecific” immune system.
Detailed explanation-2: -Innate immunity at birth The non-specific immune response is characterized by phagocytic cells, such as neutrophils and macrophages (See “Parts of the Immune System”). While newborns have both of these types of cells, they are limited in quantity.
Detailed explanation-3: -Innate immunity is the immune system that is present when you are born. It is your body’s first line of defense against germs.
Detailed explanation-4: -The cells involved are neutrophils, monocytes, macrophages and dendritic cells, which all interact with the adaptive immune system. These cells develop and mature during fetal life, but at different times, and the function of all components of innate immunity is weak in newborns compared with later life.
Detailed explanation-5: -Innate immunity. Innate immunity can be viewed as comprising four types of defensive barriers: anatomic (skin and mucous membrane), physiologic (temperature, low pH and chemical mediators), endocytic and phagocytic, and inflammatory.