Podcast
Questions and Answers
What is the function of ventricles in the heart?
What is the function of ventricles in the heart?
- Collect blood and push it into the atria
- Pump blood out to the body or lungs (correct)
- Produce lubricating fluid for the heart
- Connect to the pulmonary trunk and aorta
Where is the epicardium located in relation to the myocardium?
Where is the epicardium located in relation to the myocardium?
- Located in the ventricles
- Deeper than the myocardium
- Adjacent to the atria
- Superficial to the myocardium (correct)
Which vein is the only vein to carry oxygenated blood in the body?
Which vein is the only vein to carry oxygenated blood in the body?
- Pulmonary artery
- Pulmonary vein (correct)
- Superior vena cava
- Inferior vena cava
What separates the two sublayers of the serous layer in the pericardium?
What separates the two sublayers of the serous layer in the pericardium?
Which structure in the heart can hold blood and empty into the atria?
Which structure in the heart can hold blood and empty into the atria?
How much fluid does the heart pump per minute?
How much fluid does the heart pump per minute?
What happens to Ca++ channels at 0mV?
What happens to Ca++ channels at 0mV?
What is the function of slow Ca++ channels in the heart?
What is the function of slow Ca++ channels in the heart?
If not for endocrine control, how many times would the SA node fire per minute?
If not for endocrine control, how many times would the SA node fire per minute?
What is the purpose of the AV node in the heart's conduction system?
What is the purpose of the AV node in the heart's conduction system?
Which part of the heart has been recorded with the lowest heart rate of 28 BPM?
Which part of the heart has been recorded with the lowest heart rate of 28 BPM?
What is the purpose of AED's in the context of cardiac electrical problems?
What is the purpose of AED's in the context of cardiac electrical problems?
During which phase of the cardiac cycle does blood flow into the atria and through into the ventricles?
During which phase of the cardiac cycle does blood flow into the atria and through into the ventricles?
Which component of the ECG represents the depolarization of the atria?
Which component of the ECG represents the depolarization of the atria?
What is the main function of an artificial pacemaker in the context of heart contraction?
What is the main function of an artificial pacemaker in the context of heart contraction?
In the context of the cardiac cycle, what happens during ventricular diastole?
In the context of the cardiac cycle, what happens during ventricular diastole?
What characterizes end systolic volume (ESV) in the context of cardiac physiology?
What characterizes end systolic volume (ESV) in the context of cardiac physiology?
What is the term used to refer to the presence of both S3 and S4 heart sounds?
What is the term used to refer to the presence of both S3 and S4 heart sounds?
Which valve does the S1 heart sound correspond to?
Which valve does the S1 heart sound correspond to?
What is the formula to calculate Cardiac Output (CO)?
What is the formula to calculate Cardiac Output (CO)?
What percentage range constitutes a normal Ejection Fraction?
What percentage range constitutes a normal Ejection Fraction?
Which reflex causes an increase in parasympathetic stimulation in response to pressure and stretch?
Which reflex causes an increase in parasympathetic stimulation in response to pressure and stretch?
What is the target heart rate range used to keep Cardiac Output high during exercise?
What is the target heart rate range used to keep Cardiac Output high during exercise?
What controls the nervous regulation of heart rate from the medulla oblongata?
What controls the nervous regulation of heart rate from the medulla oblongata?
Which factor increases heart rate and contractility?
Which factor increases heart rate and contractility?
What is the function of endothelium in the heart?
What is the function of endothelium in the heart?
What is the main function of the septum in the heart?
What is the main function of the septum in the heart?
What is the role of the moderator band in the heart?
What is the role of the moderator band in the heart?
Why is the left ventricle thicker than the right ventricle?
Why is the left ventricle thicker than the right ventricle?
Which statement about semilunar valves is correct?
Which statement about semilunar valves is correct?
What causes a heart murmur during auscultation?
What causes a heart murmur during auscultation?
What is the function of coronary circulation in the heart?
What is the function of coronary circulation in the heart?
Why do cardiac muscle cells have a long refractory period?
Why do cardiac muscle cells have a long refractory period?
What is the main function of the Sinoatrial (SA) node?
What is the main function of the Sinoatrial (SA) node?
What happens when cardiac contractile cells depolarize?
What happens when cardiac contractile cells depolarize?
