10 Questions
What is the primary factor that determines cardiac preload?
Venous return
What is the term for the increase in cardiac output in response to increased venous return?
Frank-Starling effect
Which type of regulation is determined by the stretch of ventricular fibers in diastole?
Heterometric regulation
What is the term for the load the heart experiences during contraction?
Cardiac afterload
Which of the following is NOT a factor that determines intrinsic regulation of the heart?
Peripheral vascular resistance
What is the primary factor that determines cardiac afterload?
Peripheral vascular resistance
Which type of regulation is determined by the heart rate?
Homeometric regulation
What is the term for the effect of increased heart rate on cardiac output?
Bowditch effect
Which of the following is an example of intrinsic regulation of the heart?
Frank-Starling effect
What is the term for the regulation of cardiac output in response to changes in venous return and cardiac afterload?
Heterometric regulation
Test your knowledge of cardiovascular physiology, including intrinsic regulation of the heart, cardiac preload, and cardiac afterload. Understand the concepts of heterometric and homeometric regulation and their relation to heart rate and blood pressure.
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