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14 Cards in this Set
- Front
- Back
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what is tidal volume? |
volume of gas inspired or expired during each normal resting ventilation cycle |
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what is inspiratory reserve volume |
volume that can be inhaled during forced breathing |
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what is expiratory reserve volume |
volume below tidal volume |
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what is inspiratory capacity |
max volume air that can be inhaled (inspir. reserve vol. + tidal vol.) |
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what is functional residual capacity |
volume of air remaining in the lungs after exhalation of tidal volume |
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what is vital capacity? |
max amount of air that can be exhaled after taking deepest breath possible |
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what is total lung capacity? |
vital capacity + residual volume |
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what is dead space? |
anatomical dead space in trachea air sacs that are nonfunctional |
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what causes heart murmurs? |
- streptococcus bacteria infection (resembles cell surfaces of heart valves) - valvular stenosis (inflammation of inner lining of heart chambers -- valves can't close properly) - septal defect: hole between ventricle and atrium - incompetent valve: chordae tendinae get stretched and can't hold valve closed |
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what ais atherosclerosis? |
accumulation of fatty materials beneath inner lining of arteries |
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what are treatments for heart attacks |
- angioplasty: clear clogged arteries - coronary bypass - repair heart with artificial pacemaker |
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what is phlebitis? |
inflammation of vein when when a deep vein is involved |
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what are the parts of the heart involved in an ecg |
- SA node - AV node - AV bundle (bundle of his) - purkinje fibers |
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what are the parts of an ECG and what do they refer to? |
- P wave: atrial depolarization - PR segment: AV node delay - QRS complex: ventricular depolarization - ST segment: time during which ventricles empty - TP interval: relaxation of ventricles - U wave: purkinje fibers repolarizing |
