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Conduction System of the Heart
...  phase is known as the systole, 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  ...

Fetal Circulation
...  ovale exists in the fetus. This is an opening between the right and left atrium. Most of the blood flows through this foramen directly into the left atrium from the right atrium; thus, bypassing pulmonary circulation. From here, the blood flows into the left ventricle. The left ventricle pumps blood through the aorta into the body. Some of the blood moves from the aorta through 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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