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प्रश्न
Histamine causes the ______ of blood vessels.
रिकाम्या जागा भरा
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उत्तर
Histamine causes the dilatation of blood vessels.
Explanation:
Histamine is released from mast cells and basophils during inflammatory responses. It causes local vasodilatation, which increases blood flow to the affected area, leading to redness and swelling. This dilatation also increases the permeability of capillaries, allowing immune cells and plasma to enter tissues to combat infection.
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