Histamine causes all EXCEPT:
Correct Answer: Platelet aggregation
Description: Platelet aggregation REF: Robbin's pathology 7th edition page 63 Preformed histamine is present in mast cell granules and is released by mast cell degranulation in response to variety of stimuli. In humans histamine causes: Aeriolar dilatation Increased permeability of venules (however constricts large aeries) Via binding to H1 receptor on endothelial cells
Category:
Pathology
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