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Anatomy & Physiology -II BS Nursing
nmdcat.online June 6, 2026

120. The “lubb” sound of the heart is caused by the closure of which valves?

A. Aortic and pulmonary valves
B. Mitral and tricuspid valves
✓
C. Mitral and aortic valves
D. Tricuspid and pulmonary valves

📖 Additional Information

  • Aortic and pulmonary valves
  • Mitral and tricuspid valves
  • Mitral and aortic valves
  • Tricuspid and pulmonary valves

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