cardiovascular system pp130-140
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| angi/o | vessel | |
| aort/o | aorta | |
| arteri/o | artery | |
| ather/o | fatty substance | |
| atri/o | artrium | |
| cardi/o | heart | |
| coron/o | heart | |
| hemangi/o | blood vessel | |
| phleb/o | vein | |
| sphygm/o | pulse | |
| steth/o | chest | |
| thromb/o | clot | |
| valv/o | valve | |
| valvul/o | valve | |
| vascul/o | blood vessel | |
| vas/o | vessel, duct | |
| ven/o | vein | |
| ventricul/o | ventricle | |
| -manometer | instrument to measure pressure | |
| -ole | small | |
| -tension | pressure | |
| -ule | small | |
| arteries | carry blood Away from heart | |
| blood vessels | arteries, veins, & capillaries | |
| capillaries | where body tiss. exchange gases | |
| carbon dioxide | waste produced from metabolism, transported to lungs, liver, kidneys | |
| oxygen | distrubuted to cells | |
| circulatory system | other name for cardiovascular (CV) | |
| deoxygened | bluish blood without Oxygen (transported to lungs) | |
| heart | 4 chambered muscular pump/ organ, 60-100 bpm | |
| oxygen | obtained in lungs, tranport to cells | |
| oxygenated | red blood going toward cells | |
| pulmonary circulation | CV circuit between heart & lungs | |
| systemic circulation | CV circuit carries blood away from heart and back again | |
| vein | vessels carry blood toward the heart, have valves&thinner walls | |
| apex | lower tip of the heart | |
| cardiac muscle fibers | tissue that makes the heart | |
| endocardium | inner layer, lines heart chambers, reduce friction of blow flow | |
| epicardium | outer layer, | |
| myocardium | musclar middle layer, contraction=^pressure for pumping | |
| parietal pericardium | outer layer of pericardium | |
| pericardium | double layer plueral sac, encloses epicardium, fluid between reduce friction when heart beats | |
| viseral pericardium | inner layer of pericardium, =epicardium | |
| atria | upper 2 chambers of the heart, recieving chambers | |
| interatrial septum | wall between the artia | |
| ventricles | lower 2 chambers of the heart, pumping chambers, thick wall | |
| cusps | leaflets | |
| atrioventricular valve | controls blood flow between atrium & ventricle, makes Lub | |
| semilunar valve | valve shaped like a half moon, make dub | |
| tricuspid valve | from rt. atrium into rt. ventricle, atrioventricular | |
| pulmonary valve | flows from rt. ventricle to pulmonary artery, semilunar | |
| mitral valve | (bicuspid) from left artruim to left venticle | |
| aortic valve | from left ventricle to aorta, semilunar | |
| aorta | largest artery, from left vent into this | |
| diastole | when the chamber is relaxed, lower # | |
| inferior vena cava | lower of 2 large veins, enters rt. atrium | |
| pulmonary artery | recieves blood from rt vent, carry to lungs | |
| pulmonary veins | carries blood to left atrium | |
| superior vena cava | upper of 2 large veins, enters rt. atrium | |
| systole | contraction phase, higher # | |
| order of pumping (6) | vena cava to rt-Atrium, tric. valve, rt. vent to pulmon art. to lungs, pulmonary veins to lf. atrium, mitral valve, lf. vent. to aorta | |
| sinoatrial (SA) node | pacemaker, where electric impulse begins, atrium systole | |
| atrioventricular node | 2nd stimulated, transfers to AV bundle | |
| atrioventricular bundle | also bundle of His | |
| bundle branches | part of the elect. system stemming from AV bundle | |
| Purkinje fibers | in vent. myocardium (triggers vent. systole) | |
| lumen | channel in a blood vessel | |
| arterioles | ||
| coronary arteries | branch from the aorta, provide blood to myocardium | |
| arterioles | small arteries | |
| capillary bed | a network of sm. blood vessel, made of endothelium | |
| venules | small veins | |
| blood pressure (BP) | measure of force of blood against the wall of a blood vessel | |
| systolic pressure | highest pressure during ventricular systole | |
| pulse | surge of blood after heart contraction | |
| diastolic pressure | blood not pushed, lowest pressure |
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