3 doctors weighed in:
What is the function of heart valve?
3 doctors weighed in

Dr. Michael Fenster
Internal Medicine - Cardiology
1 doctor agrees
In brief: To direct flow
A heart valve functions to allow unidirectional blood flow.
When chambers of the heart contract, one heart valve will open and one will close; this effectively allows only one low resistance pathway for the blood to follow. If there were no valves, blood would flow backwards from where it just came as well as forwards. This would significantly decrease the effectiveness of the heart as a pump.

In brief: To direct flow
A heart valve functions to allow unidirectional blood flow.
When chambers of the heart contract, one heart valve will open and one will close; this effectively allows only one low resistance pathway for the blood to follow. If there were no valves, blood would flow backwards from where it just came as well as forwards. This would significantly decrease the effectiveness of the heart as a pump.
Dr. Michael Fenster
Dr. Michael Fenster
Thank
Dr. Nassir Azimi
Clinical Lipidology
In brief: Regulate
Flow of blood in a single direction across different chambers.

In brief: Regulate
Flow of blood in a single direction across different chambers.
Dr. Nassir Azimi
Dr. Nassir Azimi
Thank
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