MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Histamine dilates blood vessels in order to attract phagocytes and WBC to the area during inflammation; heparin contain anticoagulant which prevents clotting; both are produced by basophils and by mast cells
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The function of basophils is similar to that of mast cells. Hence, both these cells comprise histamine, heparin and serotonin. Histamines are released in response to allergens such as food or dust, and heparins are anticoagulants that prevent blood clotting.
Detailed explanation-2: -Mast cells release histamine as well as other vasoactive molecules, which cause urticaria (hives). If the antigen activates mast cells in deeper tissue, this can lead to angioedema.
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