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CSA Chapter 9
Cardiovascular System
Term | Definition |
---|---|
angi/o | vessel |
aort/o | aorta |
arteri/o | artery |
ather/o | fatty (lipid) paste |
atri/o | atrium |
cardi/o | heart |
coron/o | circle or crown |
my/o | muscle |
pector/o | chest |
phleb/o | vein |
sphygm/o | pulse |
steth/o | chest |
thromb/o | clot |
vas/o | vessel |
varic/o | swollen, twisted vein |
vascul/o | vessel |
ven/o | vein |
ventricul/o | ventricle (belly or pouch) |
atrium | upper right or left chamber of the heart |
endocardium | membrane lining the cavities of the heart |
epicardium | membrane forming the outer layer of the heart |
interatrial septum | partition between the right and left atria |
interventricular septum | partition between the right and left ventricles |
myocardium | heart muscle |
pericardium | protective sac enclosing the heart composed of two layers with fluid between |
visceral pericardium | layer of the pericardium closest to the heart (visceral=pertaining to organ) |
parietal pericardium | outer layer (parietal=pertaining to wall) |
pericardial cavity | fluid-filled cavity between the pericardial layers |
ventricle | lower right or left chamber of the heart |
heart valves | structures within the heart that open and close with the heartbeat to regulate the one-way flow of blood |
aortic valve | heart valve between the left ventricle and the aorta |
mitral valve | heart valve between the left atrium and the left ventricle (cuspis=point); also called the bicuspid valve |
bicuspid valve | heart valve between the left atrium and the left ventricle (cuspis=point); also called the mitral valve |
pulmonary valve | heart valve opening from the right ventricle to the pulmonary artery (luna=moon); also called the pulmonary semilunar valve |
tricuspid valve | valve between the right atrium and the right ventricle |
valves of the vein | valves located at intervals within the lining of veins, especially in the legs, which constrict with muscle action to move the blood returning to the heart |
arteries | vessels that carry blood away from the heart to the arterioles |
aorta | large artery that is the main trunk of the arterial system branching from the left ventricle |
arterioles | small vessels that receive blood from the arteries |
capillaries | tiny vessels that join arterioles and venules |
venules | small vessels that gather blood from the capillaries into the veins |
veins | vessels that carry blood to the heart from the venules |
systemic circulation | circulation of blood throughout the body via arteries, arterioles, capillaries, venules, and veins to deliver oxygen and nutrients to body tissues |
coronary circulation | circulation of blood through the coronary blood vessels to deliver oxygen and nutrients to the heart muscle tissue |
pulmonary circulation | circulation of blood from the pulmonary artery through the vessels in the lungs and back to the heart via the pulmonary vein, providing for the exchange of gases |
blood pressure (BP) | measure of the blood within the systemic arteries maintained v=by the force and rate of the heartbeat and the diameter and elasticity of arterial walls; measured with a sphygmomanometer (BP cuff) for diagnostic purposes |