![]() The heart is the main organ that helps in the circulation of blood throughout the body. It helps to pump and circulate blood through the cardiovascular system. Heart: The heart contains four chambers named right atrium, right ventricle, left atrium and left ventricle. Its primary function is to exchange the materials like oxygen, between the blood and tissue cells. The connection between the arteries and the veins. Veins (which return blood from the heart): The “Pulmonary veins” carry oxygenated blood from the lungs to the left atrium of the heart wherein “systemic veins” carry deoxygenated blood from the body to the right atrium of the heart.Ĭapillaries: These are the smallest and most numerous of the blood vessels. The cardiovascular system keeps a controlled and continuous movement of blood that delivers oxygen and nutrients to the cells of the body and carries out the carbon dioxide and waste products from the body.Īrteries (which carry blood away from the heart): The “pulmonary arteries” carry deoxygenated blood from the right ventricle of hearts and lungs whereas “systemic arteries” transport oxygenated blood from the left ventricle of the heart to the rest of the body. They all are connected to a muscular pump known as the “Heart”. It is a closed system of vessels called arteries, veins, and capillaries. Maintain Consistency of Internal Environment: body fluid properties are kept to maintain an efficient metabolism.Temperature regulation: Helps in regulating the body temperature. ![]()
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