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Heart & BVs
Health Assessment Exam 3
| Term | Definition |
|---|---|
| S1 | Lubb sound |
| S2 | Dubb |
| S3 | A/w heart failure |
| S4 | A/w stiff heart r/t aging |
| Murmurs | Blowing/Swooshing Sound |
| Pericordium | Area on anterior chest overlying heat and bv |
| Mediastium | Middle 1/3 of thoracic cage, occupied by heart and great vessels |
| Pericardium | Double walled sac surrounding heart |
| Endocardium | Innermost layer, lining chambers of heart |
| Myocardium | Thick muscular wall |
| Endocardium | Innermost layer lining inner heart chambers and covers heart valves & small muscles that open & close valves |
| Septum | Separates right and left heart |
| Valves | Prevent backflow of blood |
| Chrodae tendinae | Anchor valves to papillary muscles embedded in ventricle floor |
| Atrioventricular Valves | Mitral and Tricuspid |
| Systole | AV close (pumping phase) SLV open |
| Diastole | AV open (filling phase) SLV close |
| Semilunar Valves | Aortic and Pulmonic |
| Pulmonary Congestion | Lack of valves btwn pulmonary vein and left atrium & high LV pressure |
| JVD and Abdominal Distention | Lack of valves btwn vena cava and right atrium & high pressure in venous system |
| Diastole | BP lowest point & atria pressure greater |
| Pre-Systole | Atrial kick; accounts for 25% of stroke volume |
| Stroke Volume | Amount of blood ejected with each beat |
| Systole | Ventricular pressure greater |
| SA Node | Intrinsic rhythm pacemaker for heart |
| Bradycardia | <60 bpm |
| Embolism | Construction of artery by blood clot or foreign matter |
| Thrombosis | Presence of clot within a bv or heart cavities |
| Thrill | Palpable vibration resulting from murmur or disruption in vascular blood flow |