Practice Question
Which of the following describes the process of systole?
Answer Choices:
Correct Answer:
Ventricles contract and blood is ejected from the heart
Rationale:
🔶Systole begins with ventricular contraction, raising pressure and closing the AV valves (S1).
🔶As pressure exceeds the aortic and pulmonary pressures, the semilunar valves open and stroke volume is ejected.
🔶The phase is governed by preload, afterload, and contractility, which determine ejection fraction and cardiac output.
🔶Systole ends when ventricular pressure falls below great vessel pressure, leading to semilunar valve closure (S2).
🔶Accurate identification of systole is essential when correlating heart sounds, pulses, and blood pressure dynamics.
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This question is from Patho FINAL NSG1520 Summer 2025 PGH SJC which contains 105 questions.
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Question Details
- Category: LPN Nursing Exam(s)
- Subcategory: 💎Examplify-PN
- Domain: 👩🏼🔬Pathophysiology-PN
- Answer Choices: 4