Master the Normal Cardiac Cycle

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Questions and Answers

Which of the following factors affects cardiac physiology by influencing the degree of stretch on the ventricular walls prior to contraction?

Afterload (correct)
Glucose supply
Cardiac output
Stroke volume

Which term refers to the amount of blood pumped by the heart per minute?

Preload
Cardiac output (correct)
Stroke volume
Afterload

Which of the following factors affects stroke volume by influencing the amount of blood in the ventricles before contraction?

Cardiac output
Glucose supply
Afterload
Preload (correct)

What is the normal cardiac cycle, and what are the four factors affecting cardiac physiology?

The normal cardiac cycle includes atrial contraction, ventricular contraction, and relaxation. The four factors affecting cardiac physiology are preload, afterload, cardiac output, and stroke volume. Signup and view all the answers

What is preload, and how does it affect cardiac physiology?

Preload is the degree of stretch on the ventricular walls prior to contraction. It affects cardiac physiology by influencing the force of contraction and stroke volume. Signup and view all the answers

What is afterload, and how does it impact perfusion?

Afterload is the resistance against which the heart must pump to eject blood from the ventricles. It impacts perfusion by affecting cardiac output and the amount of oxygen and glucose supplied to the tissues. Signup and view all the answers

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