Tricuspid valve
The tricuspid valve is one of the four valves of the heart and is located between the right ventricle and the right atrium. It belongs to the sail flaps and consists of a total of three sails (Cuspis = Sail).
This includes:
- Angular cusp, the front sail
- Cuspis parietalis, the rear sail
- Cuspis septalis, the lower sail
The tricuspid valve is attached to the papillary muscles in the right ventricle of the heart with so-called tendon threads.
Illustration heart
- Right atrial - Atrium dextrum
- Right ventricle -
Ventriculus dexter - Left atrium - Atrium sinistrum
- Left ventricle -
Ventriculus sinister - Aortic arch - Arcus aortae
- Superior vena cava -V. cava superior
- Lower vena cava -V. cava inferior
- Pulmonary artery trunk -
Pulmonary trunk - Left pulmonary veins -
Vv. Pulmonary sinastrae - Right pulmonary veins -
Vv. Pulmonary dextrae - Mitral valve - Valva mitralis
- Tricuspid valve -
Tricuspid valva - Chamber partition - Interventricular septum
- Aortic valve - Valva aortae
- Papillary muscle - M. papillaris
- Pulmonary valve - Valva trunci pulmonalis
All medical illustrations
function
The tricuspid valve serves as the Valve between right ventricle and right atrium. Will be at the heart action blood from the heart in the body and pulmonary circulation pumped, prevented the flap the Backflow of blood from the right ventricle into the right atrium by closing. After the heart contracts (heart action), the heart relaxes to fill up with blood again. So that that can happen the tricuspid valve opens, this allows blood to flow from the right atrium towards the right ventricle. You can do the function compare with a door, depending on whether it is closed or open, the blood can flow in or is prevented.
So that the sail flap cannot turn over, it is through their Tendon threads well anchored in the muscle of the right ventricle.
Closes the flap is no longer efficient from one Tricuspid regurgitation spoken, the opposite happens, so opens the flap no longer closes, one speaks of one Tricuspid valve stenosis. In rare cases it can also become one Lack of the flap come, this is called Tricuspid atresia. However, in contrast to the mitral valve, which is located in the "left heart", the tricuspid valve is less often affected by malformations or valve defects.
