Read more about causes of Metastatic cancer. More information about causes of Metastatic cancer: 1  Metastatic cancer as a complication caused by other conditions. 2  Metastatic cancer as a symptom.
When your heart's left ventricle (one of the four chambers of the heart) pumps blood into the aorta (the largest artery in the body), the first muscle to receive the oxygen-rich blood is your heart itself. It receives this blood through the coronary arteries on the surface of the heart.
The Heartâs Parts. The heartâs four chambers function as a double-sided pump. The right side of the heart takes in oxygen-depleted blood from the organs. This blood is delivered to the heart through the veins. The chambers on the left side pump oxygen-rich blood out to the body through arteries. The heartâs four chambers are: Right atrium: This chamber receives oxygen-depleted blood that has already circulated around the body and pumps it into the right ventricle.