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Medical Term Ch.9
Question | Answer |
---|---|
angi/o | vessel |
aort/o | aorta |
arteri/o | artery |
ather/o | fatty (lipid) paste |
coron/o | circle or crown |
phleb/o | vein |
sphygm/o | pulse |
steth/o | chest |
varic/o | swollen, twisted vein |
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 |
pericardium | protective sac enclosing the heart composed of two layers with fluid between |
visceral pericardium | layer of the pericardium closest to the heart |
parietal pericardium | outer layer |
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 |
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 |
arterioles | small vessels that receive blood from the arteries |
capillaries | tiny vessels that join arterioles and 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 |
diastole | to expand; period during the cardiac cycle (complete heart beat) when blood enters the relaxed ventricles from the atria |
systole | to contract; period during the cardiac cycle (complete heart beat) when the heart is in contraction and blood is ejected through the aorta and the pulmonary artery |
normotension | normal blood pressure |
hypotension | low blood pressure |
hypertension | high blood pressure |
polarization | resting; resting state of a myocardial cell |