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  1. Aug 17, 2023 · The right atrium receives deoxygenated blood from the systemic circulation via the superior and inferior vena cava. On the other hand, oxygenated blood leaving the lungs is carried to the left atrium via the pulmonary veins.

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      Figure 5. Diagrammatic description of breast sentinel node...

    • Right Ventricle
    • Interventricular Septum
    • Left Ventricle

    The right ventricle receives deoxygenated blood from the right atrium, and pumps it through the pulmonary orifice (guarded by the pulmonary valve), into the pulmonary artery. It is triangular in shape, and forms the majority of the anterior border of the heart. The right ventricle can be divided into an inflow and outflow portion, which are separat...

    The interventricular septum separates the two ventricles, and is composed of a superior membranous part and an inferior muscularpart. The muscular part forms the majority of the septum and is the same thickness as the left ventricular wall. The membranous part is thinner, and part of the fibrous skeletonof the heart.

    The left ventricle receives oxygenated blood from the left atrium, and pumps it through the aortic orifice (guarded by the aortic valve) into the aorta. In the anatomical position, the left ventricle forms the apex of the heart, as well as the left and diaphragmatic borders. Much like the right ventricle, it can be divided into an inflow portion an...

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  2. There are two atria in the human heart – the left atrium receives blood from the pulmonary circulation, and the right atrium receives blood from the venae cavae of the systemic circulation. During the cardiac cycle, the atria receive blood while relaxed in diastole, then contract in systole to move blood to the ventricles.

  3. The left atrium receives oxygenated blood from pulmonary circulation through the left and right pulmonary veins. Blood passively flows into the atria without passing through valves. The atria relax and dilate (expand) while they fill with blood in a process called atrial diastole.

  4. Oct 30, 2023 · In pulmonary circulation, deoxygenated blood from the tissues of the body received by the right atrium flows into the right ventricle and is pumped from the right ventricle into the pulmonary trunk. The pulmonary trunk carries the deoxygenated blood into the lungs via the right and left pulmonary arteries.

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  5. Aug 28, 2023 · The right atrium receives deoxygenated blood from the entire body except for the lungs (the systemic circulation) via the superior and inferior vena cavae. Also, deoxygenated blood from the heart muscle itself drains into the right atrium via the coronary sinus.

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  7. Sep 14, 2021 · The pulmonary veins conduct blood into the left atrium, which pumps the blood into the left ventricle, which in turn pumps oxygenated blood into the aorta and on to the many branches of the systemic circuit.

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