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08-12-2022
Biology

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what visceral sensory stimulus triggers the autonomic reflex causing the reduction of blood pressure?

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RupaBera RupaBera

14-12-2022

A visceral sensory signal sets off an autonomic reflex that causes the big vessel walls to expand, lowering blood pressure.

In what ways do autonomic reflexes regulate blood pressure?

The baroreceptors are activated when arterial pressure is raised because the blood vessel wall is stretched. These baroreceptors then provide the autonomic nervous system with feedback. Efferent parasympathetic fibers are then used by the ANS to lower heart rate (vagus nerve). This lowers blood pressure.

Autonomic reflexes are caused by what?

The limbic system sends ANS regulatory input to the hypothalamus, which is located directly above the brain stem, to coordinate autonomic activities.

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