Have a Heart power point (part 2) Flashcards
Ventricles
the inferior chambers of the heart
Septum
the separating wall of the heart
The 4 valves of the heart
- right atrioventricular valve
- pulmonary semilunar valve
- left atrioventricular valve
- aortic semilunar valve
Right artioventricular valve aka
tricuspid valve
Left atrioventricular valve aka
mitral valve
bicuspid valve
The rate and regularity of the heart rhythm is
- influenced by the electrical impulses from nerves that stimulate the myocardium
Heart rate
Cardiac output
the volume of blood pumped by the heart per unit time
Systole
contraction
Bradycardia
abnormally slow heartbeat
Tachycardia
abnormally fast heartbeat
Diastole
relaxation
Arrhythmia
abnormal heart rhythm
(aka dysrhythmia)
Electrocardiogram (ECG/EKG)
the record of the electrical activity of the myocardium
- tracing that shows the changes in voltage and polarity of the heart over time
Auscultation
listening to body sounds with a stethoscope
Murmur
abnormal sound associated with turbulent blood flow