A patient is experiencing allergy symptoms after being exposed to environmental dust. This reaction involves the action of histamine, which is released by what cells?
A) Lymphocytes
B) CD4 T cells
C) Basophils
D) Platelets
C
Feedback:
Histamine is discharged from mast cells and basophils in response to certain stimuli, such as allergic reactions, cellular injury, and extreme cold. Lymphocytes and platelets do not release histamine.
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