Model, note that these arteries wrap the heart in a circle (corona) within a gro

Question

Model, note that these arteries wrap the heart in a circle (corona) within a groove between the atria and ventricles. Branches of the coronary arteries supply the myocardium. The myocardium is drained by the coronary veins, which empty into a large posterior vein called the coronary sinus, a large posterior vein called the coronary sinus. The coronary sinus drains into the right atrium. Which side of the heat receives blood from the lungs? The left ventricle myocardium is thicker and stronger than the right ventricle myocardium. Why? In which side of the heart is the aortic semilunar valve? Which SL valve is bathed in oxygen-poor blood? Name the three vessels that drain into the right atrium. Is the blood in the pulmonary vein oxygen-rich of oxygen-poor? In which side of the heart is the pulmonary semilunar valve/Simple is stronger. How is this statement related to the number of flaps (cusps) in the AV valves. Which AV valve is bathed in oxygen-rich blood?

Explanation / Answer

1) left atrium.

2) LV pumps blood to the entire body, while RV only pumps to the lungs. therefore LV requires more power behind each contraction, so its walls are thicker with muscle.

3) blood in the pulmonary vein is oxygen rich.

4) pulmonary semilunar valve lies between the right ventricle and the pulmonary artery.

5) aortic semilunar valve present in between the left ventricle and the aorta.

6) tricuspid (3-cupped) valve into the right ventricle.

7) superior vena cava, inferior vena cava and coronary sinus are three vessel drains into RA.

8) bicuspid valve or mitral valve of LV and aortic semilunar valve between the LV and the aorta.

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