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Your cardiovascular system is your heart and blood arteries. Your heart uses a vast network of blood arteries to supply oxygen and other nutrients to your body. This network removes waste and takes it to organs for disposal. Oxygen, nutrients, and waste are carried by your blood. Body has two circulatory systems. First, systemic circulation. It delivers blood to organs, tissues, and cells throughout the body. Second is pulmonary circulation. Blood circulates between the heart and lungs. It's where blood oxygenates and carbon dioxide departs. The cardiovascular system ensures your body obtains oxygen, nutrition, and other essentials and eliminates waste. Any abnormalities or injuries to the cardiovascular system might be dangerous. Coronary artery disease, heart attack, high blood pressure, and stroke are cardiovascular conditions. Even while you sleep, your heart circulates blood. Your heart pumps 2,000 litres every day. Some blood vessels (veins) supply blood to the heart, while oth
