VALVE OF VIEUSSENS Meaning and
Definition
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The valve of Vieussens, also referred to as the Vieussens' valve or the vestibule of the coronary sinus, is a structure located within the heart. It is a small valve-like fold of tissue found at the opening of the coronary sinus, a major blood vessel that returns deoxygenated blood from the heart muscle to the right atrium.
Functionally, the valve of Vieussens acts as a regulatory mechanism, controlling the flow of blood between the coronary sinus and the right atrium. Its primary role is to prevent the backflow of blood from the right atrium into the coronary sinus, ensuring proper circulation and oxygenation of the blood.
The valve of Vieussens consists of thin, flexible tissue that closes the coronary sinus opening when contraction of the right atrium occurs during the cardiac cycle. This closure prevents blood from being forced back into the coronary sinus, maintaining the forward flow of blood towards the right ventricle.
Named after the French physician Raymond de Vieussens who extensively studied cardiovascular anatomy, the valve of Vieussens serves a crucial role in maintaining the efficient functioning of the heart. Any dysfunction or abnormality of this valve can lead to disorders such as regurgitation, which is the backward flow of blood, potentially impacting cardiac function and overall cardiovascular health.
Common Misspellings for VALVE OF VIEUSSENS
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