15+ Heart Diagram Labeled Right Atrium PNG. Daniel nelson on january 1, 2019 1 comment. They permit blood flow in one direction only, and prevent backflow of blood.
The right atrium contains the sinoatrial node(sa node) which helps the heart in regulating its rhythm. It consists of four chambers: The right atrium receives blood from the veins and pumps it to the right ventricle.
These valves have been clearly shown in the labeled diagram of the heart.
In the human heart diagram two atria and ventricles are separated from each other by a muscle wall called septum. Tricuspid valve prevents the back flow of blood as it is pumped from the right atrium to the right ventricle. The human heart, comprises four chambers: Selecting or hovering over a box will highlight each area in the diagram.