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A hollow musclar sytsem located in chest between lungs. It works as an affective pump and provides power to transport blood to the pulmonary and systematic circulatory system.
Sends blood AWAY from the heart and transports blood to all body tissues.
connection between arterys and veins and exchanges oxygen & carbon dioxide w/ cell tissue and nutrients & waste product with cells.
Receves blood from all body tissues and waste products from body tissue. It also transports blood back to the heart
Blood with oxygen
Blood without oxygen
Double wall membrane sac that encloses the heart.
Prevents friction when heart beats (lubricating fluid) and is found in the pericardium.
External layer of the heart, also inner layer of the pericardial sac.
Middle and thickest layer of the heart, consists of the cardiac muscle.
Lining of the heart that forms the inner surface, it has direct contact with blood pumping through the heart.
Two upper chambers of the heart, it recieves blood from all parts of body. All blood vessels enter heart through the atria. (deoxyginated blood)
two lower chambers of the heart, the vessels leaving the heart emerge from them. The walls are thicker that atrial walls.
Superior vena cava
Inferior vena cava