The Cardiac Cycle
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Objective
I can describe the phases of the cardiac cycle and their significance in heart function while comparing atrial and ventricular systole and diastole.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Define the terms systole and diastole, and explain their significance in the cardiac cycle.
Describe the sequence of events that occurs during ventricular systole, including the phases involved and the role of the valves.
Part 3 of 3
Exit ticket
Quick comprehension check
“Which of the following correctly describes the phases of ventricular diastole and their significance in the filling of the ventricles? A) Isovolumic relaxation, rapid inflow, and diastasis are the phases, and they allow for passive filling of the ventricles. B) Isovolumic contraction, ejection, and rapid inflow are the phases, and they prevent blood from entering the ventricles. C) Rapid inflow, atrial systole, and ejection are the phases, and they are all part of the systole process. D) Diastasis, atrial systole, and isovolumic relaxation are the phases, and they occur during ventricular contraction. In comparing atrial systole and ventricular systole, which of the following statements is true regarding timing and pressure changes? A) Atrial systole occurs after ventricular systole, and both phases have the same pressure changes. B) Atrial systole occurs simultaneously with ventricular systole, and both phases contribute equally to heart function. C) Atrial systole occurs before ventricular systole, and pressure in the atria increases before the ventricles contract. D) Atrial systole occurs after ventricular systole, and pressure in the ventricles decreases during this phase.”
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