The Circulatory System. The Heart, Blood Vessels, Blood Types. The Closed Circulatory System. Humans have a closed circulatory system , typical of all vertebrates, in which blood is confined to vessels and is distinct from the interstitial fluid.
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The Heart, Blood Vessels, Blood Types
Superior Vena Cava
Pulmonary Semilunar Valve
Aortic Semilunar Valve
To the bodies organs & cells
2. Blood Vessels -A network of tubes
3. The Blood
Liquid portion of the blood. Contains clotting factors, hormones, antibodies, dissolved gases, nutrients and waste
B. Erythrocytes - Red Blood Cells
C. Leukocytes – White Blood cells