The cause of the first heart sound is
A) Closure of the m itral valve
B) Closure of the tricuspid valve
C) Closure of both mitral and tricuspid valves
D) Closure of the aortic valve
E) Closure of both aortic and pulmonary valves
Correct Answer:
Verified
Q8: Blood in the left atria
A) Enters the
Q9: Blood in the vena cavae
A) Enters the
Q10: Blood in the left ventricle exits the
Q11: The heart is
A) Bilaterally symmetric and located
Q12: The tough fibrous sac that encases the
Q14: The tricuspid valve closes when
A) The right
Q15: Diastole is the
A) Closed opening between right
Q16: Isovolumetric contraction of the left ventricle ends
A)
Q17: Systole is the
A) Closed opening between right
Q18: The cause of the second heart sound
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