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Chapter 9 Review

Cardiovascular System

TermDefinition
heart pumps blood throughout the body
blood vessels transport blood throughout the body
septum divides heart into right and left portions
interatrial septum separates the atria
interventricular septum separates the ventricles
endocardium membrane that lines the interior cavities of the heart
myocardium thick, muscular layer
epicardium outer membrane
pericardium loose, protective sac that surrounds and encloses the heart
pulmonary circulation passage of blood from right ventricle through pulmonary artery to lungs (where blood is oxygenated) and back through the pulmonary veins to the left atrium
systemic circulation contraction of left ventricle pushes blood through aortic valve into aorta and on to all parts of the body through arteries, arterioles, capillaries, venules, and veins
coronary circulation supplies blood to the heart, Heart is the first organ to receive oxygenated blood via right and left coronary arteries
aort/o aorta
ather/o fatty (lipid) paste
sphygm/o pulse
thromb/o clot
blood pressure force exerted by circulating blood on the walls of the arteries, veins, and heart chambers
diastole period in cardiac cycle when blood enters relaxed ventricles from the atria
systole period in cardiac cycle when heart is in contraction and blood is ejected through the aorta and pulmonary artery
normotension normal blood pressure
hypotension low blood pressure
hypertension high blood pressure
cardiac conduction provides electrical stimulus that is necessary to cause the heart muscle to pump blood by the continual contraction (systole) and relaxation (diastole) of myocardial (heart muscle) cells
AV atrioventricular
CAD coronary artery disease
HTN hypertension
IV intravenous
PET positron-emission tomography
TEE transesophageal echocardiogram
SA sinoatrial
Created by: 1351193362054630
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