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Questions and Answers
What is the primary cause of an abnormal S4 heart sound?
What is the primary cause of an abnormal S4 heart sound?
- Weak left ventricle (correct)
- Weak right ventricle
- Increased aortic pressure
- Decreased blood volume
What principle dictates that fluid must move from an area of high pressure to an area of low pressure?
What principle dictates that fluid must move from an area of high pressure to an area of low pressure?
- Boyle's Law
- Starling's Law of the Heart
- Bernoulli's Principle
- Pascal's Principle (correct)
What factor affects Stroke Volume through its inotropic effects?
What factor affects Stroke Volume through its inotropic effects?
- Carbon dioxide levels
- Oxygen levels
- Epinephrine (correct)
- Blood viscosity
Which reflex involves baroreceptors in the carotid arteries and the aorta sensing changes in blood pressure?
Which reflex involves baroreceptors in the carotid arteries and the aorta sensing changes in blood pressure?
What term refers to the amount of blood flowing from the atria to the ventricles during diastole?
What term refers to the amount of blood flowing from the atria to the ventricles during diastole?
What does the Medullary Ischemic Reflex control when cerebral blood flow drops?
What does the Medullary Ischemic Reflex control when cerebral blood flow drops?
Which factor will result in a decrease in Stroke Volume due to an increase in aortic pressure?
Which factor will result in a decrease in Stroke Volume due to an increase in aortic pressure?
What is the term for the rate at which the heart beats per minute?
What is the term for the rate at which the heart beats per minute?
Which feature of cardiac function does Starling's Law of the Heart primarily relate to?
Which feature of cardiac function does Starling's Law of the Heart primarily relate to?
What mechanism stimulates sympathetic impulses to constrict blood vessels when blood distribution or pressure changes?
What mechanism stimulates sympathetic impulses to constrict blood vessels when blood distribution or pressure changes?
During which phase of the cardiac cycle do the atria relax and begin refilling?
During which phase of the cardiac cycle do the atria relax and begin refilling?
Which heart sound is caused by the closure of the semilunar valves?
Which heart sound is caused by the closure of the semilunar valves?
What is the primary function of the purkinje fibers in the heart's conduction system?
What is the primary function of the purkinje fibers in the heart's conduction system?
Which valve separates the right atrium and right ventricle?
Which valve separates the right atrium and right ventricle?
What happens during Isovolumetric Ventricular Relaxation phase of the cardiac cycle?
What happens during Isovolumetric Ventricular Relaxation phase of the cardiac cycle?
Which phase of the cardiac cycle involves both atria contracting to complete emptying?
Which phase of the cardiac cycle involves both atria contracting to complete emptying?
What defines the beginning of Isovolumetric Ventricular Contraction in the cardiac cycle?
What defines the beginning of Isovolumetric Ventricular Contraction in the cardiac cycle?
Which heart valve separates the left atrium and left ventricle?
Which heart valve separates the left atrium and left ventricle?
What action characterizes Ejection phase in the cardiac cycle?
What action characterizes Ejection phase in the cardiac cycle?
What is a characteristic of the Purkinje fibers in the heart's conduction system?
What is a characteristic of the Purkinje fibers in the heart's conduction system?
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