Epinephrine and norepinephrine interact directly with blood cells and the cells lining blood vessel walls.

Name: Epinephrine and norepinephrine interact directly with blood cells and the cells lining blood vessel walls.
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Epinephrine and norepinephrine can bind to alpha- and beta-adrenergic receptors on blood vessels, causing constriction or dilation, respectively. They also stimulate platelet aggregation and release of clotting factors.

Epinephrine and Norepinephrine Interact Directly with Blood Cells and the Cells