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The human heart has 4 chambers. Blood with no O2 goes to the heart then is pumped to the lungs to receive O2 then the blood is sent back to the heart where it is then pumped to the rest of the body.

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15y ago

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What controls the flow of blood in arteries?

Your heartbeat


What does a stimulant do to the heart and circulatory system?

Increases the heartbeat, the blood flow and expands the veins to accommodate the flow


What happens during the first stage of a heartbeat?

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Can you feel a heartbeat in the thumb?

No, typically the pulse and heartbeat are more commonly felt in areas closer to the heart, such as the wrist or neck. If you are feeling a pulse in your thumb, it may be due to pressure or other factors affecting blood flow.


Why blood flow with jerks in the arteries?

Blood flow in arteries can exhibit jerks or pulsations primarily due to the rhythmic contraction of the heart, which creates pressure waves as blood is pumped into the arteries. This pulsatile flow is influenced by the elasticity of the arterial walls, which expand and recoil with each heartbeat. Additionally, factors such as blood pressure and the overall health of the cardiovascular system can affect the smoothness of blood flow, leading to more pronounced jerks or fluctuations.


Can you feel a heartbeat in you adominal bottom if you're pregnant?

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