Quinnhezil314viz
Answered

Since the valves act as the doors of the heart, what might happen if these doors do not close?

Sagot :

Mizuviz
The blood will flow backwards....

--Mizu
Anniecaviz
the valves protect the blood to flow one direction if the doors do not close the blood will flow backwards and it might be going to the other valves and causing to had a heart failure.the heart will stop to pump.

(^_^)hope it can help.......