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Conduction System of the Heart
...  and the relaxation phase is called the diastole. The heart is responsible for pumping blood to the lungs and the rest of the body. The distribution of blood through pulmonary circulation and systemic circulation is accomplished by the systematic contraction and circulation of the cardiac muscle in the myocardium. For the blood to effectively produce and be distributed throughout the  ...

Routes Of Circulation
...  flow of circulatory blood is divided into 2 divisions: the pulmonary circulation and the coronary circulation. Pulmonary Circulation This division is complimented by systemic circulations. It consists of blood vessels that transport blood through these ways: the lungs for oxygenation, and for the return of the waste gases along the way and to the blood vessels, then back to the heart. The  ...


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