The second heart sound is associated with what mechanical event of the cardiac cycle?
a. Atrioventricular valve closure
b. Atrioventricular valve opening
c. Semilunar valve closure
d. Semilunar valve opening
ANS: C
Closure of the semilunar valves generates the second heart sound.
Health Professions
You might also like to view...
Dental x-ray machines contain each of the following components except one. Which one is the exception?
A) Control panel B) Extension arm C) Radioactive material D) Tube head
Health Professions
Describe the tasks involved in the patient departure procedure.
What will be an ideal response?
Health Professions