Human heart
The human heart is a muscular organ that pumps blood through the body. Deoxygenated blood from the body enters the right atrium through the vena cava and moves to the right ventricle. It is pumped through the pulmonary artery to the lungs for gas exchange. Oxygenated blood returns by pulmonary veins to the left atrium then to the left ventricle. The aorta carries oxygen-rich blood to the body. Valves prevent backflow, septum separates sides and SA node controls heartbeat rhythm.





































































































My daughter was born with 3 heart chambers plus her blood was getting mixed and not going through the chambers correctly going to her lungs Had surgery 4 heart chambers need to fix valve but it was to restricted. No heart lung transplant lived to be 6