The blood circulation in the circulatory system
The blood circulation
The blood circulation is the path of the blood throughout the body . It can be divided into two small circulations which are the minor ( pulmonary ) blood circulation , and the major ( systemic ) blood circulation .
The minor ( pulmonary ) blood circulation is the blood circulation between the heart and the two lungs , The major ( systemic ) blood circulation is the blood circulation between the heart and all the parts of the body .
The blood carrying carbon dioxide gas reaches from all the body parts to the right atrium through the two large veins which are the superior and the inferior venae cavae .
The blood flows to the right ventricle through a valve , The right ventricle contracts pumping the blood into the two lungs through the pulmonary artery , Inside the two lungs , carbon dioxide gas is exchanged with oxygen gas .