The heart is an organ that pumps blood around the body in a double circulatory system. the right ventricle pumps blood to the lungs where gas exchange takes place.
The left ventricle pimps blood around the rest of the body
The aorta is the largest artery in the body.
It carries oxygenated blood away from the left ventricle to the body.
The vena cava is the largest vein in the body. It carries deoxygenated blood from the body back to the heart
The pulmonary artery carried deoxygenated blood away from the right ventricle to the lungs.
The pulmonary vein returns oxygenated blood from the lungs to the heart.
The pulmonary vein transports oxygenated blood back to the left atrium, then into the left ventricle before oxygenated blood is transported to the body via the aorta
Coronary arteries supply the heart.
The heart, like all other muscles in the body, needs oxygen to drive aerobic respiration. Coronary arteries are found on the surface of the heart, and they supply it with oxygen
The natural resting heart rate is controlled by a group of cells located in the right atrium that act as a pacemaker. Artificial pacemakers are electrical devices used to correct irregularities in the heart rate
The body contains three different types of blood vessel:
