2 doctors weighed in:
Which heart valve closes first in the heart?
2 doctors weighed in

Dr. Julian Aroesty
Internal Medicine
In brief: Mitral valve
Mitral closes first followed by tricuspid (s1) then aortic followed by pulmonic (s2).

In brief: Mitral valve
Mitral closes first followed by tricuspid (s1) then aortic followed by pulmonic (s2).
Dr. Julian Aroesty
Dr. Julian Aroesty
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Dr. Andrew Chung
Internal Medicine - Cardiology
In brief: Triscupid valve
As the heart contracts, the tricuspid valve is able to close before the mitral valve because it faces a lower systemic venous pressure compared to a slightly higher pulmonary venous pressure faced by the mitral valve.

In brief: Triscupid valve
As the heart contracts, the tricuspid valve is able to close before the mitral valve because it faces a lower systemic venous pressure compared to a slightly higher pulmonary venous pressure faced by the mitral valve.
Dr. Andrew Chung
Dr. Andrew Chung
Thank
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Board Certified, Internal Medicine - Cardiology
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