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Med Term Ch 9
| Question | Answer |
|---|---|
| Heart valve's purpose | open and close to maintain the one-way flow of blood through the heart |
| How many heart valves are there and list them? | Mitral Tricuspid Aortic Pulmonary |
| angi/o, vas/o, vascul/o | vessel |
| ather/o | fatty (lipid) paste |
| coron/o | circle or crown |
| sphygm/o | pulse |
| 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 (visceral = pertaining to organ) |
| parietal pericardium | outer layer (parietal=pertaining to wall) |
| pericardial cavity | fluid-filled cavity between the pericardial layers |
| 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 |
| 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 by the force and rate of the heartbeat and the diameter and elasticity of arterial walls |
| normotension | normal blood pressure |
| hypotension | low blood pressure |
| hypertension | high blood pressure |
| conduction of electrical impulses pathway: | from the sinoatrial (SA) node (the pacemaker of the heart) ↓ to the atrioventricular (AV) node ↓ to the atrioventricular (AV) bundle (bundle of His) ↓ to the right and left bundle branches ↓ to the Purkinje fibers |
| CE | angiotensin-converting enzyme |
| ACS | acute coronary syndrome |
| ASD | atrial septal defect |
| CABG | coronary artery bypass graft |
| CAD | coronary artery disease |
| CCU | coronary care unit; critical care unit |
| CTA | computed tomographic angiography |
| CHF | congestive heart failure |
Created by:
2068128180012120
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