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15y ago

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How does heat help muscles?

The heat causes the circulatory system to "open up", increasing blood flow to the warmed muscles. The increased blood flow helps bring nutrients to the muscles and helps remove waste.


How do vasodilators work to widen blood vessels and improve blood flow?

Vasodilators work by relaxing the muscles in the walls of blood vessels, causing them to widen. This widening allows for increased blood flow, which can help improve circulation and reduce blood pressure.


Does blood flow to the kidneys increase during vigorous exercise?

Yes, blood flow to the kidneys typically increases during vigorous exercise to help meet the increased oxygen demand of the muscles. This increased blood flow helps the kidneys maintain proper filtration rates even during intense physical activity.


How do the arm muscles change before and after exercise?

Before exercise, the arm muscles are in a relaxed state with limited blood flow. During exercise, the muscles contract and blood flow increases to provide oxygen and nutrients. After exercise, the muscles may feel fatigued and may experience micro-tears, which can lead to muscle growth and increased strength over time.


Why is the blood flow to extremities reduced during exercise?

During exercise, blood flow to the extremities is reduced because the body prioritizes delivering oxygen-rich blood to the muscles that are actively working. The sympathetic nervous system is activated, causing vasoconstriction in the blood vessels of the extremities while promoting vasodilation in the muscles. This redistribution ensures that the essential muscles receive adequate blood supply to support increased metabolic demands during physical activity. As a result, extremities may receive less blood flow temporarily.


Do smooth muscles prevent the backward flow of blood toward your heart?

No. Valves in the arteries are responsible for preventing back-flow of blood, not smooth muscles.


Does exercise effect memory capacity?

Excersice increases blood flow, more blood Flow to the brain = increased oxygen= increased energy = increased mental Sharpness! :)


Does increased blood flow to should a wound?

no


Which part of the body needs blood when running?

When running, the muscles in the legs and arms require increased blood flow to supply them with oxygen and nutrients. Additionally, the heart pumps more blood to deliver oxygen to these active muscles and remove waste products like carbon dioxide.


How the muscles in an artery regulate blood flow?

There are no muscles in arteries. Arterioles have muscles which can close them, but which has no normal flow control. (Used is stress/shock conditions only) Capillaries have a muscle which can stop all flow through it - it responds to oxygen pressure and is the ultimate control of blood flow.


How do the muscles in an artery regulate blood flow?

There are no muscles in arteries. Arterioles have muscles which can close them, but which has no normal flow control. (Used is stress/shock conditions only) Capillaries have a muscle which can stop all flow through it - it responds to oxygen pressure and is the ultimate control of blood flow.


Why you felt hot or warm after jogging for five minutes?

This is because of the increased blood flow near the skin, which is a likely effect of increased blood flow from the exercise directly related to heart rate. Also, your muscles release a acid excretion while working. This may account for the burning muscle feeling as well as warmth.