The circulatory system transports blood throughout the body, delivering oxygen and nutrients to cells and removing waste products. It consists of the
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How does blood pressure change throughout the day?
Blood pressure varies throughout the day. It is typically lower in the morning when you wake up and higher in the afternoon and evening. Stress, exercise, caffeine, and salt intake all affect blood pressure.
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What causes a heart murmur?
A heart murmur is an unusual sound made by blood flowing through the heart. It can be caused by valve problems where valves do not close properly, allowing blood to flow backwards. Some murmurs are harmless while others indicate a problem needing treatment.
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How fast does blood travel through the body?
Blood travels at different speeds depending on the vessel. In the aorta near the heart, blood moves at about 40 centimeters per second. In capillaries, it slows to about 0.3 centimeters per second, allowing time for gas exchange.
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