Right Atrioventricular Valve

Right Atrioventricular Valve

• Right atrioventricular valve: The right atrioventricular valve, also known as the tricuspid valve, is part of the valvular complex of the heart. It is one of the two atrioventricular (AV) valves and functions to separate the right atrium from the right ventricle. The Right atrioventricular valve has three leaflets: the anterior, posterior and septal leaflets. (1,2,3)
  • Right atrioventricular orifice: It is the opening situated between the right atrium and the right ventricle. It is larger than the left ventricular orifice. (1)
  • Superior leaflet of the right atrioventricular valve: This is the largest leaflet and is situated at the top. (1)
  • Inferior leaflet of the right atrioventricular valve: The leaflet is situated at the bottom. (1)
  • Septal leaflet of the right atrioventricular valve: This leaflet is situated towards the interventricular septum. It has numerous tendinous cords that connect it directly to the ventricular septum. Additionally, its hinge is inserted closer to the apex of the heart compared to the hinge of the mitral leaflet. (1,2)

It is worth noting that the atrioventricular valves have a tension apparatus that consists of papillary muscles and chordae tendinae. The tension apparatus prevents them from collapsing into the atria when the ventricles contract during systole. The tension apparatus is described in the ventricles section.

Bibliography

1. Gray H, Lewis W. Angiology. In: Anatomy of the human body. 1918. p. 526–42
2. Faletra FF, Pandian NG, Ho SY. The Cardiac Valves. In: Anatomy of the Heart by Multislice Computed Tomography. Wiley-Blackwell; 2009. p. 55–80.
3. Hinton RB, Yutzey KE. Heart Valve Structure and Function in Development and Disease. Annu Rev Physiol. 2011;73:29.

The structure and organization of anatomical terms used in this text follow the guidelines provided by FIPAT (2019) in their publication: FIPAT. (2019). Terminologia Anatomica (2nd ed.). FIPAT.library.dal.ca. Federative International Programme for Anatomical Terminology. Retrieved May 7, 2023, from https://fipat.library.dal.ca/TA2/