Podcast
Questions and Answers
What is the unique feature of the pulmonary artery in terms of the blood it carries?
What is the unique feature of the pulmonary artery in terms of the blood it carries?
- It carries blood directly to the left ventricle
- It carries deoxygenated blood (correct)
- It carries oxygenated blood
- It carries both oxygenated and deoxygenated blood
Which layer of the heart produces lubricating fluid?
Which layer of the heart produces lubricating fluid?
- Epicardium (correct)
- Endocardium
- Myocardium
- Parietal layer of serous pericardium
Where is the base of the heart located in relation to the apex?
Where is the base of the heart located in relation to the apex?
- Inferior and lateral
- Superior and medial (correct)
- Superior and lateral
- Inferior and medial
What is the function of the ventricles in the heart?
What is the function of the ventricles in the heart?
What is located within the sulci of the heart?
What is located within the sulci of the heart?
How many auricles are present in a typical heart and what is their function?
How many auricles are present in a typical heart and what is their function?
What happens at 0mV in the heart cells based on the provided information?
What happens at 0mV in the heart cells based on the provided information?
Which component of the heart's electrical activity is responsible for depolarization of the ventricles?
Which component of the heart's electrical activity is responsible for depolarization of the ventricles?
What is the role of troponin in the heart muscle contraction process?
What is the role of troponin in the heart muscle contraction process?
Which of the following components is responsible for repolarization in the heart's electrical activity?
Which of the following components is responsible for repolarization in the heart's electrical activity?
If the SA node fires at a rate of 90 times per minute, what would be the expected rate of firing of the atrioventricular bundle based on the information provided?
If the SA node fires at a rate of 90 times per minute, what would be the expected rate of firing of the atrioventricular bundle based on the information provided?
What is the function of an artificial pacemaker in managing heart conditions?
What is the function of an artificial pacemaker in managing heart conditions?
Which heart chamber has a small contractile phase and contains pectinate muscles?
Which heart chamber has a small contractile phase and contains pectinate muscles?
What makes an audible sound as they close according to the text?
What makes an audible sound as they close according to the text?
What is the function of desmosomes in cardiac muscle cells?
What is the function of desmosomes in cardiac muscle cells?
What initiates and propagates the action potential through the heart?
What initiates and propagates the action potential through the heart?
Where is the Sinoatrial (SA) node located?
Where is the Sinoatrial (SA) node located?
In cardiac conductive cells, which channels allow a slow influx of Na+ to create spontaneous depolarization?
In cardiac conductive cells, which channels allow a slow influx of Na+ to create spontaneous depolarization?
What is the total time from initial impulse to ventricle depolarization approximately according to the text?
What is the total time from initial impulse to ventricle depolarization approximately according to the text?
