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The human heart is the most crucial organ of the human body.

The human heart is the most crucial organ of the human body. It pumps blood from the heart to different parts of the body and back to the heart. The most common  heart attack symptoms  or warning signs are chest pain, breathlessness, nausea, sweating etc. The diagram of heart is beneficial for Class 10 and 12 and is frequently asked in the examinations. A detailed explanation of the heart along with a well-labelled diagram is given for reference.

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