MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not true of histamine?
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it makes blood vessels leakier
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it allows immune system cells to travel to damaged tissue faster
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large amounts can cause anaphylactic shock in some people
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it constricts blood vessels
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Explanation:
Detailed explanation-1: -Answer and Explanation: Of the given statements about histamines the one that is not correct is that it is a bronchodilator. Histamine is able to stimulate smooth muscle contraction primarily in the lungs.
Detailed explanation-2: -Answer and Explanation: The correct option is b. Histamine is present in almost all tissues of the human body. It is mainly stored in the granules of mast cells.
Detailed explanation-3: -Explanation: Histamine, when released, causes inflammation by increasing vasodilation, capillary permeability, causing smooth muscle contraction, mucus secretion, and parasympathetic nerve stimulation.
There is 1 question to complete.