Published Mar 26, 2008
carlarenee02
190 Posts
I have a question regarding physiology. What happens when semilunar valves of heart opens? (in heart) Does the following occur? av valves are closed, ventricles are in diastole, blood enters aorta and atria contract? Is this wrong or right?
Another question. Blood enters which of these vessels during venticular systole? Is it, pulmonary vein, aorta and pulm trunk, pulm. arteries or aorta?
Last question. Which vessel of heart receives blood during right ventricular systole? aorta, venae cavae, pulm artery or pulm vein?
Thanks all.
obicurn
565 Posts
Semilunar valves open when the ventricles contract so that part of the answer is incorrect. Also, ventricles are in systole. (Systole during contraction, diastole during rest state). Blood does enter the aorta when SL valves open.
2nd answer:
Aorta and Pulmonary trunk. Aorta from the left ventricle and pulmonary trunk from the right ventricle.
3rd: aorta
OOPS!!! I saw the Right in your 3rd question. It is not aorta. It is Pulmonary Artery. Aorta is from the left.