Multiple choice

Two prominent sounds lubb and dubb are produced during each cardiac cycle. The first heart sound is associated with the closure of which of the following?

a. Tricuspid valves b. Bicuspid valves c. Semilunar valves

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. The first heart sound is associated with the closure of the tricuspid and bicuspid valves.

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