arteriole reaction

a response controlled by the autonomic nervous system and marked by a change in the diameter of the arterioles, which control the flow of blood from the arteries to the capillaries. Smooth muscle in the walls of the arterioles is particularly sensitive to sympathetic nerve impulses and may react to anger, fear, or other emotions by producing dramatic changes of blood pressure.

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Psychology term of the day

November 23rd 2024

simulator

n. a training device that simulates the conditions or environment of the actual operating situation or that resembles the actual equipment to be used, such as a flight simulator for pilots. The training allows for a safe, lower-cost experience with the conditions under study but may lack realism.