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030
Cardiovascular System -Q – Anatomic Terms & A – Meaning
| Question | Answer |
|---|---|
| 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 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) |
| pulmonary semilunar valve | heart valve opening from the right ventricle to the pulmonary artery (luna = moon) |
| tricuspid valve | valve between the right atrium and the right ventricle |
| valves of the veins | 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 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 (see Fig. 5-2) |
| 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 |
Created by:
MT student1
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