InterviewSolution
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InterviewSolution
| 1. |
State whether semi lunar valves are open or closed during joint diastole. |
| Answer» During systole, the\xa0aortic\xa0and\xa0pulmonic valves\xa0open to permit ejection into the\xa0aorta\xa0and\xa0pulmonary artery. The\xa0atrioventricular valves\xa0are closed during systole, therefore no blood is entering the\xa0ventricles; however, blood continues to enter the\xa0atria\xa0through the vena cavae and\xa0pulmonary veins.\xa0The\xa0semilunar valves\xa0act in concert with the AV\xa0valves\xa0to direct blood flow through the heart. When the atrioventricular\xa0valves are open, the\xa0semi lunar valves\xa0are shut and blood is forced into the ventricles. When the AV\xa0valves\xa0shut, the\xa0semilunar valves open, forcing blood into the aorta and pulmonary artery. | |