What separates the heart into left (arterial) and right (venous) parts? what does not allow blood to pass back

What separates the heart into left (arterial) and right (venous) parts? what does not allow blood to pass back from the vessels to the ventricles? what provides the movement of blood to the ventricles? which ensures the flow of blood to the circulation

The human heart is divided by a solid partition into two parts, right and left, in the left arterial blood flows, and in the right venous.
The leaflet valves allow blood to pass only in one direction, and do not pass in the opposite direction.
The blood circulation provides the movement of blood to the ventricles.



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