Heart Notes (Circulatory System)

CIRCULATORY BLOOD FLOW heart pathway cardiac cycle

A V V A Atrium = A Ventricle = V Right Side Left Side Aorta Pulmonary Artery A A Left atrium Right atrium V V Left ventricle Right ventricle

To body Right Side Left Side To lungs From body To lungs From lungs From lungs From body

Vessels that carry blood to the heart Structure Function Veins Vessels that carry blood to the heart Arteries Vessels that carry blood away from the heart Capillaries Site where O2 and CO2 are exchanged, tiny vessels connecting arteries to veins. Oxygen rich blood/oxygenated Blood that is high in O2 and low in CO2 (RED) Oxygen poor blood/deoxygenated Blood that is low in O2 and high in CO2 (BLUE) Left Atrium Receives O2 rich blood from the lungs

Receives O2 poor blood from the body Right Atrium Receives O2 poor blood from the body Left Ventricle Pumps O2 rich blood to the body Right Ventricle Pumps O2 poor blood to the lungs Valves Open and close to keep blood moving in one direction Pulmonary Artery Carries O2 poor blood to the lungs Aorta Carries O2 rich blood to the body Pericardium Thin sac (membrane) that surrounds the heart Myocardium The contractile muscle tissue of the heart

Heart Attack vs. Stroke Heart Attack Stroke

Artificial Heart http://www.youtube.com/watch?v=Gv9xB9HQsww http://www.youtube.com/watch?v=PMw6Wzmk0Ak&feature=related http://www.chron.com/disp/story.mpl/front/7486853.html