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What is Human Circulatory System Overview about?

The circulatory system transports blood around the body using the heart as a pump and a network of vessels. It uses a double circulation system with low pressure circulation to the lungs and high pressure circulation to the body. The heart has four chambers and four valves to ensure one-way blood flow. Physical activity increases heart rate and circulation to supply muscles with more oxygen and glucose. Coronary heart disease occurs when arteries supplying the heart become blocked, limiting its blood and ox

Author

Raima Qaiser

Language

EN