Heart Physiology Flashcards
What is autorhythmicity? What happens if the body must alter this automatic rate?
Can you name the five parts of the cardiac conduction system? What are the functions of each part? Which one is called the “pacemaker of the heart”?
What is an artificial pacemaker? What types of hearts need pacemakers?
All types of muscle contract when they are stimulated and depolarize. But what is special about the way in which cardiac muscle does this?
What is an electrocardiograph? What does it record?
Can you name the three parts of a normal ECG tracing? What electrical event is shown by each part? Which small electrical event is not seen on a normal ECG tracing?
Common ECG abnormalities include arrhythmias, tachycardia, bradycardia, and fibrillations. Briefly describe each of these abnormalities.
What is the most dangerous ECG abnormality? What is an AED, and how does it help resolve this abnormality?
Explain the difference between systole and diastole
What are the normal “heart sounds”? What is a common abnormal heart sound?
Define cardiac output, stroke volume, and heart rate. What factors affect your stroke volume? What factors affect your heart rate?
