A stress response that can trigger the constriction of arteries, slowing blood flow through the body is called which?

A stress response that can trigger the constriction of arteries, slowing blood flow through the body is called which?

• A. Sympathetic Blood Flow Distress
• B. Parasympathetic Response
• C. Vasodilation Reaction
• D. Neurogenic Reflex

Answer: (A)

When the body encounters stress, the sympathetic branch of the autonomic nervous system ramps up as part of the fight-or-flight response. It sends signals that cause vascular smooth muscle to constrict in many peripheral arteries, mainly through norepinephrine acting on alpha-adrenergic receptors. This vasoconstriction raises the resistance to blood flow and slows overall circulation, while redirecting blood toward essential organs and muscles that may need quick energy. The parasympathetic system would tend to promote relaxation and, in many vessels, vasodilation rather than constriction. A generic neurogenic reflex isn’t specific to this stress-driven arterial constriction, and the term “Sympathetic Blood Flow Distress” isn’t a standard label. So the stress response that constricts arteries to slow blood flow best fits sympathetic activation.

When the body encounters stress, the sympathetic branch of the autonomic nervous system ramps up as part of the fight-or-flight response. It sends signals that cause vascular smooth muscle to constrict in many peripheral arteries, mainly through norepinephrine acting on alpha-adrenergic receptors. This vasoconstriction raises the resistance to blood flow and slows overall circulation, while redirecting blood toward essential organs and muscles that may need quick energy. The parasympathetic system would tend to promote relaxation and, in many vessels, vasodilation rather than constriction. A generic neurogenic reflex isn’t specific to this stress-driven arterial constriction, and the term “Sympathetic Blood Flow Distress” isn’t a standard label. So the stress response that constricts arteries to slow blood flow best fits sympathetic activation.