A decrease in right atrial pressure leads to an increase in venous return, and vice versa.

右心房压力降低导致静脉回流增加，反之亦然。

Part of this change in pressure is transmitted across the walls of the heart, lowering right atrial pressure and thus facilitating venous return.

这种压力变化部分通过心脏壁传递，降低右心房压力，从而促进静脉回流。

The rate of venous return is determined by two factors: the pressure gradient between venous pressure and right atrial pressure; and venous resistance.

静脉压与右心房压之间的压力梯度；以及静脉阻力。