What is true of the parasympathetic nervous system stimulation? It will increase

Question

What is true of the parasympathetic nervous system stimulation? It will increase the heart rate It will dilate the pupils of the eye It has a calming effect on the body It will decrease the blood flow to and activity/function of the digestive system What role do the heart valves have within the function of the heart? They help pump the blood from one chamber to another They help prevent the backflow of blood through the heart They assist with the cardiac conduction system They assist with the protection of the heart

Explanation / Answer

q.no.7: Parasympathetic Nervous System stimulation

The monitoring and regulation of everyday body processes would be impossible without the parasympathetic nervous system, Further, the parasympathetic nervous system plays a vital role in maintaining both mental and physical health by helping the body to calm down from stress reactions that elevate blood pressure, dilate the pupils, and divert energy from other body processes to fighting or fleeing.

Heart Valves help to prevent the back flow of blood through the heart.

Normally heart valve allows blood to flow in only one direction through the heart. A heart valve opens or closes incumbent on differential blood pressure on each side. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.

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