nigrostriatal tract

the neural pathway that extends from the substantia nigra to the striatum of the basal ganglia. It contains dopaminergic neurons and is associated with the production of voluntary movement.

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Psychology term of the day

January 29th 2025

vasoconstrictor

n. any drug or other agent (e.g., the hormone vasopressin) that causes constriction of blood vessels so that the diameter of the vessels is reduced. The vasomotor nerves of the sympathetic nervous system also serve as vasoconstrictors. Vasoconstrictor drugs are used to increase blood pressure that has fallen to dangerously low levels. Also called vasopressor.