How Do Vasoconstrictors Work?

Vascular constriction, or narrowing of blood vessels, refers to narrowing of the lumen of blood vessels in the body, which will cause blood pressure to rise. Its opposite process is called vasodilation.

vasoconstriction

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Vascular constriction, or narrowing of blood vessels, refers to narrowing of the lumen of blood vessels in the body, which will cause blood pressure to rise. Its opposite process is called

A type of vascular motor nerve that has a vaso-contriction effect. Belongs to the sympathetic nervous system. The postganglionic fibers meet with the dorsal pulp nerve. Or independently follow the artery to the end. Almost distributed on peripheral blood vessels throughout the body. In the abdominal viscera, through the visceral nerves. The distribution of this kind of nerve is particularly many, but the role of vasoconstrictor nerve in skeletal muscle is slight, and it is in important organs such as heart, lung and brain. The role of this nerve is invisible.