The Heart
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Four major blood vessels and their functions
Vena cava: Carries deoxygenated blood to right atria. • Pulmonary artery: Carries deoxygenated blood to the lungs. • Pulmonary vein: Carries oxygenated blood to left atria. • Aorta: Carries oxygenated blood to rest of body.
Name the four chambers in the heart and their functions
The left & right ventricles and the left and right atriums. • The left ventricle is thicker due to it pumping blood all around the body. Hence why we feel it more on the left hand side. • The septum divides the two sides of the heart. • Heart valves ensure blood moves in one direction only. • The coronary artery provides nutrients and oxygen to the cardiac muscle of the heart itself.
Whats the plasma and name the function
Functions: To transport dissolved chemicals (COz, nutrients, waste) and heat around the body. Plasma is an excellent solvent as it is 90% water. 20