Podcast
Questions and Answers
What are the 2 audible sounds of a healthy heart?
What are the 2 audible sounds of a healthy heart?
- S3 and S4
- S1 and S3
- S1 and S2 (correct)
- S2 and S4
What is the cause of heart murmurs?
What is the cause of heart murmurs?
- Excessive blood pressure
- Turbulent blood flow (correct)
- Blockage in coronary arteries
- Weak cardiac muscles
What is the formula for calculating Cardiac Output (CO)?
What is the formula for calculating Cardiac Output (CO)?
- CO = HR * SV (correct)
- CO = SV / HR
- CO = SV - HR
- CO = HR + SV
What is the normal range of Cardiac Output (CO) in liters per minute?
What is the normal range of Cardiac Output (CO) in liters per minute?
What does Ejection Fraction represent?
What does Ejection Fraction represent?
What happens to Stroke Volume (SV) during intense exercise?
What happens to Stroke Volume (SV) during intense exercise?
What is the main function of the atria in the heart?
What is the main function of the atria in the heart?
Which chamber of the heart connects to the pulmonary trunk?
Which chamber of the heart connects to the pulmonary trunk?
What distinguishes the pulmonary artery from other arteries?
What distinguishes the pulmonary artery from other arteries?
Which layer of the heart produces lubricating fluid in the pericardial cavity?
Which layer of the heart produces lubricating fluid in the pericardial cavity?
What is located at the base of the heart?
What is located at the base of the heart?
What is the main function of ventricles in the heart?
What is the main function of ventricles in the heart?
What would happen if Ca++ channels did not close at 0mV?
What would happen if Ca++ channels did not close at 0mV?
Which component of the heart's electrical system has the highest natural firing rate?
Which component of the heart's electrical system has the highest natural firing rate?
What is the main role of Ca++ binding to troponin in muscle contraction?
What is the main role of Ca++ binding to troponin in muscle contraction?
If the atrioventricular bundle fires 35 times per minute, what is the heart rate?
If the atrioventricular bundle fires 35 times per minute, what is the heart rate?
What is the purpose of recording electrical signals of the heart with electrodes for an ECG?
What is the purpose of recording electrical signals of the heart with electrodes for an ECG?
Which part of the heart's electrical system is responsible for depolarizing the ventricles?
Which part of the heart's electrical system is responsible for depolarizing the ventricles?
What is the main function of an artificial pacemaker in relation to the heart?
What is the main function of an artificial pacemaker in relation to the heart?
During which phase of the cardiac cycle does blood flow from the atria into the ventricles?
During which phase of the cardiac cycle does blood flow from the atria into the ventricles?
What is the main purpose of an automated external defibrillator (AED) in cardiac emergencies?
What is the main purpose of an automated external defibrillator (AED) in cardiac emergencies?
Which term refers to the amount of blood pushed out by the ventricles during each heartbeat?
Which term refers to the amount of blood pushed out by the ventricles during each heartbeat?
What is the condition characterized by an interruption in the normal conduction pathway of the heart?
What is the condition characterized by an interruption in the normal conduction pathway of the heart?
Which layer of the heart lines the chambers filled with blood and covers the heart valves?
Which layer of the heart lines the chambers filled with blood and covers the heart valves?
Which structure divides the heart into chambers and is a physical extension of the myocardium?
Which structure divides the heart into chambers and is a physical extension of the myocardium?
What is the main function of the atrioventricular valves in the heart?
What is the main function of the atrioventricular valves in the heart?
Which chamber of the heart receives deoxygenated blood from systemic circulation?
Which chamber of the heart receives deoxygenated blood from systemic circulation?
Which valve in the heart separates the ventricles from blood vessels?
Which valve in the heart separates the ventricles from blood vessels?
What is the function of the coronary circulation in the heart?
What is the function of the coronary circulation in the heart?
Which component of cardiac muscle cells initiates and propagates the action potential through the heart?
Which component of cardiac muscle cells initiates and propagates the action potential through the heart?
What is the main function of gap junctions in cardiac muscle cells?
What is the main function of gap junctions in cardiac muscle cells?
