Podcast
Questions and Answers
What is the main factor influencing Stroke Volume?
What is the main factor influencing Stroke Volume?
- Chemical factors
- Neural factors
- Temperature factors
- Mechanical factors (correct)
Which nerve is responsible for inhibiting heart rate by releasing acetylcholine?
Which nerve is responsible for inhibiting heart rate by releasing acetylcholine?
- Vagus nerve (correct)
- Cardiac nerve
- Sympathetic nerve
- Glossopharyngeal nerve
What is the primary cause of abnormal S4 heart sounds?
What is the primary cause of abnormal S4 heart sounds?
- Strong left ventricle
- High heart rate
- Increased circulation
- Weak left ventricle (correct)
Which reflex helps oppose changes in pressure by adjusting heart rate?
Which reflex helps oppose changes in pressure by adjusting heart rate?
What is the main determinant of Preload in the heart?
What is the main determinant of Preload in the heart?
Which factor does NOT affect Cardiac Output calculation?
Which factor does NOT affect Cardiac Output calculation?
What might happen if PVR increases significantly in terms of Stroke Volume?
What might happen if PVR increases significantly in terms of Stroke Volume?
Which type of reflex helps stimulate the vasomotor center when blood distribution changes?
Which type of reflex helps stimulate the vasomotor center when blood distribution changes?
What does Chronotropy refer to?
What does Chronotropy refer to?
What primarily affects Venous Return to the heart?
What primarily affects Venous Return to the heart?
Which part of the heart receives deoxygenated blood from the inferior and superior vena cava as well as the coronary sinus?
Which part of the heart receives deoxygenated blood from the inferior and superior vena cava as well as the coronary sinus?
Which layer of the heart consists of branching cells connected by intercalated discs?
Which layer of the heart consists of branching cells connected by intercalated discs?
What is the function of the Purkinje fibers in the heart's conduction system?
What is the function of the Purkinje fibers in the heart's conduction system?
What causes the 'S1' heart sound, which is described as longer and lower than 'S2'?
What causes the 'S1' heart sound, which is described as longer and lower than 'S2'?
What is the primary function of the atrioventricular (AV) node in the cardiac conduction system?
What is the primary function of the atrioventricular (AV) node in the cardiac conduction system?
Which vessels supply most of the right ventricle with blood in the heart tissue?
Which vessels supply most of the right ventricle with blood in the heart tissue?
During which phase of the cardiac cycle do the atria relax and begin refilling with blood?
During which phase of the cardiac cycle do the atria relax and begin refilling with blood?
'Atrial kick' accounts for approximately what percentage of blood volume in the atria during atrial systole?
'Atrial kick' accounts for approximately what percentage of blood volume in the atria during atrial systole?
'Lubb-dupp' refers to which sounds made during the cardiac cycle?
'Lubb-dupp' refers to which sounds made during the cardiac cycle?
What is the function of the semilunar valves in the heart?
What is the function of the semilunar valves in the heart?