Circulatory system song |
The structure of the circulatory System |
Function of the circulatory System and the HeartThe circulatory system transports oxygen, hormones and vital nutrients to the other organs systems throughout the body. This function would not be possible without the distributor, the heart.
The heart is located in the upper body resting on the lungs behind the rib cage. The heart consists of four cavities (two atria and two ventricles). The left ventricle of the heart is the largest cavity because it is responsible for pumping the blood all around the rest of the body. How does the heart work? Blood travels through the body starting in the right atrium, this blood is deoxygenated (oxygen poor), so it passes through the tricuspid to the right ventricle where it is pumped into the pulmonary artery. The blood then returns to the heart oxygenated and enters the left atrium through the pulmonary vein. This oxygenated blood passes through the bicuspid into the left ventricle where it is pumped through the aorta to the rest of the body. |
The blood that is pumped through the body by the circulatory system consists of many different cells. These cells allow the circulatory system to do its job.
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