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Author Question: During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles relax? (Read 79 times)

Yolanda

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on: Aug 28, 2021
During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles relax?

◦ Papillary muscles relax, which allows the valves to close.
◦ Chordae tendineae contract, which pulls the valves closed.
◦ Reduced pressure in the ventricles creates a negative pressure, which pulls the valves closed.
◦ Blood fills the cusps of the valves and causes the edges to merge, closing the valves.
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Marked as best answer by Yolanda on Aug 28, 2021

diesoon

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Reply #1 on: Aug 28, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Yolanda

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Reply 2 on: Aug 28, 2021
Gracias!

mochi09

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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