What occurs in an allergic reaction when histamine binds to receptors on local sensory nerve endings?
A) Sodium channels are activated, causing pain and swelling.
B) Itch-specific fibers are stimulated, causing itching and pain.
C) Vasoconstriction in the local area causes erythema.
D) Vasoconstriction in the local area causes histaminic cephalgia.
Correct Answer:
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