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LoM Ch11 Cardio

Cardiovascular Vocabulary

aorta Largest artery in the body
arteriole Small artery
artery Largest type of blood vessel; carries blood away from the heart to all parts of the body
atrioventricular bundle (bundle of His) Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them.
atrioventricular node (AV node) Specialized tissue in the wall between the atria. Electrical impulses pass from the pacemaker (SA) node through the AV node and the atrioventricular bundle toward the ventricles
atrium One of two upper chambers of the heart
capillary Smallest blood vessel. Material pass to and from the bloodstream through the thin capillary walls.
carbon dioxide (CO2) Gas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation
coronary arteries Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
deoxygenated blood Blood that is oxygen-poor
diastole Relaxation phase of the heartbeat.
electrocardiogram Record of the electricity flowing through the heart. The electricity is represented by waves or deflections called P, QRS, or T
Created by: src1063