Aorta - Largest artery, pumping oxygenated blood around the body., Arteries - Carry blood away from the heart., Blood pressure - Force exerted by the volume of blood on the walls of the blood vessels., Capillaries - Very thin structures, which allow gas exchange., Cardiac output - Amount of blood pumped out of the heart each minute., Deoxygenated - Blood which has less oxygen in it., Diastole - Relaxation phase of the heartbeat., Heart rate - Number of heart beats that occur in a minute., Oxygenated - Blood which has oxygen in it., Pulmonary system - Circulation between the heart and the lungs., Stroke volume - Volume of blood pumped out of the heart per beat., Systemic system - Circulation between the heart and the body., Systole - Contraction phase of the heartbeat., Thermoregulation - Control of the body's temperature., Transportation - Carrying blood, nutrients and waste products around the body., Vascular shunting - Movement of blood to the working muscles away from areas less needed., Vasoconstriction - Reducing the diameter of small arteries to reduce the blood flow., Vasodilation - Increasing the diameter of small arteries to increase the blood flow., Veins - Blood vessels which transport deoxygenated blood back to the heart., Venous return - Mechanism for returning deoxygenated blood to the heart., Pulmonary artery - Carries deoxygenated blood from the heart to the lungs., Left ventricle - Pumps oxygenated blood around the body., Vena cava - Returns deoxygenated blood to the heart from the body., Left atrium - Receives oxygenated blood from the lungs., Right atrium - Receives deoxygenated blood from the body., Pulmonary vein - Carries oxygenated blood from the lungs to the heart., Right ventricle - Pumps deoxygenated blood to the lungs., Valves - Allows blood flow in one direction only.,

Cardiovascular system - Key words

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