Explain the working of the human heart with the help of a diagram.
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the blood with carbon dioxide from all parts of body is received by the right aurical and ventricle. The impure blood which is connected in lungs the purification process take place by the exchange of gases and the purified blood sent back to the left aurical. then it pumps the blood to the left ventricle which finally pumps purified blood to all parts of body with the help of arteries.
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Heart is a muscular organ which transports Oxygen and Carbon dioxide. Oxygen rich blood from the lungs comes to the left Atrium through the pulmonary veins. The left Atrium relaxes when it is collecting this blood and passes the blood to the left ventricle. at that time left ventricle also expands. From here blood is transported by the hour to two different parts of the body.
The deoxygenated blood comes from the inferior and superior Vena cava from the body parts to the right Atrium and it expands.As right Atrium contracts the corresponding right ventricle also dilates and the blood is transferred to the right ventricle which in turn Pumps it to the lungs for oxygenation through Pulmonary artery.
Valves ensure that blood does not flow backward when the atrium or ventricle contracts.
See the attachment for the figure....
hope it helps
Heart is a muscular organ which transports Oxygen and Carbon dioxide. Oxygen rich blood from the lungs comes to the left Atrium through the pulmonary veins. The left Atrium relaxes when it is collecting this blood and passes the blood to the left ventricle. at that time left ventricle also expands. From here blood is transported by the hour to two different parts of the body.
The deoxygenated blood comes from the inferior and superior Vena cava from the body parts to the right Atrium and it expands.As right Atrium contracts the corresponding right ventricle also dilates and the blood is transferred to the right ventricle which in turn Pumps it to the lungs for oxygenation through Pulmonary artery.
Valves ensure that blood does not flow backward when the atrium or ventricle contracts.
See the attachment for the figure....
hope it helps
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