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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 |