Rosalycarlite1353 Rosalycarlite1353
  • 22-02-2024
  • Health
contestada

The third and fourth heart sounds are generated by:
a) Closure of the semilunar valves
b) Closure of the atrioventricular (AV) valves
c) Contraction of the atria
d) Relaxation of the ventricles

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