How Does The Heart Pump Blood Quizlet - Charlotte Mecklenburg Police Department Arrestsfav Page Create How the heart pumps. Your conduction system sends the electrical signals which trigger the heart to pump blood around the body, and to and from the lungs. Blood which has used all its. Blood from the head, arms, legs and other parts of the body enters the right atrium through the vena cava. The muscles in the wall of the atrium contract and push the blood down into the right ventricle.
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