Question

If the left side of the heart were failing, how would this change the pressure that the right side of the heart needed to generate to continue moving blood into the pulmonary circuit?

Answer 1

The left side of the heart is responsible for receiving blood from the pulmonary circuit from the lungs. So failure of it leads to increased pressure in the lungs (pulmonary circuit). That would cause the right side of the heart, which pumps blood to the lungs) to exert more force to keep blood moving through the pulmonary circuit.
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