The circulatory system keeps the body and its tissues continuously oxygenated. It does this by having
Aveins to carry both oxygenated blood to the tissues and deoxygenated blood to the lungs.
Barteries to carry both oxygenated blood to the tissues and deoxygenated blood to the lungs.
Carteries to carry oxygenated blood to the tissues and veins to carry deoxygenated blood from the tissues to the lungs.
Dveins to carry oxygenated blood to the tissues and arteries to carry deoxygenated blood from the tissues to the lungs.
NEED THIS FAST
Aveins to carry both oxygenated blood to the tissues and deoxygenated blood to the lungs.
Barteries to carry both oxygenated blood to the tissues and deoxygenated blood to the lungs.
Carteries to carry oxygenated blood to the tissues and veins to carry deoxygenated blood from the tissues to the lungs.
Dveins to carry oxygenated blood to the tissues and arteries to carry deoxygenated blood from the tissues to the lungs.