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Question: Answered & Verified by Expert
What causes the semilunar valves to open?
BiologyBody Fluids and CirculationNEET
Options:
  • A The ventricular pressure increase
  • B The closure of the tricuspid and bicuspid valves
  • C The relaxation of the ventricles
  • D The backflow of blood into the atria
Solution:
2500 Upvotes Verified Answer
The correct answer is: The ventricular pressure increase
As the ventricular pressure increases further, the semilunar valves are forced open.

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