BiologyThe second heart sound is associated with the

The second heart sound is associated with the

  1. A

    closure of semilunar valves

  2. B

    opening of tricuspid and bicuspid valves

  3. C

    opening of semilunar valves

  4. D

    closure of tricuspid and bicuspid valves

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    Solution:

    The second heart sound (dub) is associated with the closure of semilunar valves at the beginning of joint diastole.

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