Kennethjohntomviz
Answered

what might happen if the valves of the heart do not close

Sagot :

Marsanad12viz
if the valves of the heart are not close the blood flows are not control properly.
Mizuviz
If the valves of the heart do not close, the blood will flow backwards. Blood will escape back into the chambers rather than flowing forward through the heart or into an artery.