Term
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Definition
| transport blood from heart, carry fluid & blood underpressure |
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Term
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Definition
| Pulmonic right, aortic left |
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Term
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Definition
when ventricular pressure is greater than aortic & pulmonic pressures
open during systole |
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Term
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Definition
| during disatole as ventricules are filling |
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Term
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Definition
tricuspid right atrial & right ventricle
mitral/biscuspid left atrial & left ventricle |
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Term
| Atrioventricular valves open |
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Definition
| open during ventricular relaxation, all blood to go from atria to ventricles |
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Term
| Atrioventricular valves close |
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Definition
| close when pressure increases the valves close so that the ventricles can contract. |
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Term
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Definition
| occurs after the Twave & marks the beginning of diastole |
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Term
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Definition
| corresponds with closure of the mitral & triscupid valves during systole. Occurs at the sametime as the QRS complex & marks the beginning of systole. |
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Term
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Definition
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Term
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Definition
1)LDL enter intima thru intact endotheluim
2)Intimal LDL is oxidized into proinflammatory lipids
3)Oxidized LDL causes adhesion & entry of monocytes & T lymphocytes across endothelium
4)Monocytes differentiate into macrophages & then consume large amts. of LDL, transforming into foam cells.
5)foam cells release growth factors (cytokines) that encourage atherosclerosis. |
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Term
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Definition
chronic coronary obstruction, recurrent, predictable chest pain. Last 3-5 minutes
pain caused by build up lactic acid or abnormal stretching of myocardium & irritates myocardial fibers, C3-T4, pallor, diaphoresis, dyspnea, pain relieved by rest, nitrates |
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Term
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Definition
| abnormal vasospasms of coronary vessels, chest pain unpredictable, transient ischemia of myocardium, almost exclusive occurs @ rest. pain caused by l or more major coronary artery spasms, with or without atherosclerosis, pain usually occurs @ noc during REM, cyclic pattern of occurance. Results of hyperactivity of SNS & increased calcium reflux in arteroles of small muscles, or impaired production of serotonin, thrombaxane, histamine, endothelin. |
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Term
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Definition
nonspecific symptoms: fatigue, feeling of unease, dyspnea.
Lack of sympathetic innervation: surgery, diabetes, previous MI |
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