MITRAL VALVE

Figure mitral valve

Mitral valve -
Valva mitralis

Tricuspid valve -
Tricuspid valva

Aortic valve -
Valva aortae

Pulmonary valve -
Valva trunci pulmonalis

Right atrial -
Atrium dextrum

Right ventricle -
Ventriculus dexter

Left atrium -
Atrium sinistrum

Left ventricle -
Ventriculus sinister

Papillary muscle -
Papillary muscle

Superior vena cava -

Superior vena cava

Aortic arch -
Arcus aortae

Pulmonary artery trunk -
Pulmonary trunk
1 + 2 sail flaps
= Atrial clamp valves
= Atrioventricular valves
= AV valves
3 + 4 pocket flaps

You can find an overview of all Dr-Gumpert images at: medical illustrations

She is one of the Sail flaps and consists of a total of two sails.

This includes:

Cuspis anterior, the anterior leaflet

Cuspis posterior, the posterior sail

The Mitral valve is in the left ventricle connected with so-called tendon threads on the papillary muscle.

function

The Mitral valve serves as a valve between the left ventricle and the left atrium. When the heart acts, blood flows from the heart into the body and Pulmonary circulation pumped, the flap prevents the backflow of blood from the left ventricle into the left atrium by closing.
After the heart contracts (heart action) it relaxes heart to get back with blood to fill. In order for this to happen, the mitral valve opens, allowing blood to flow from the left atrium towards the left ventricle.
So that Sail flap cannot overturn, its tendon threads make it good at Heart muscle the left ventricle anchored.

Mitral valve diseases

Mitral regurgitation
If the mitral valve no longer closes efficiently, a Mitral regurgitation spoken. Blood can flow back into the right ventricle despite the closed heart valve.
More information about the Mitral regurgitation can be found under our topic: Mitral regurgitation

Mitral valve stenosis
If the opposite happens, i.e. the mitral valve no longer opens, one speaks of one Mitral valve stenosis.
A Mitral valve stenosis can be congenital or acquired. Infections the mitral valve (Endocarditis) or that rheumatic fever can be considered to be the cause of acquired mitral valve stenosis.
You can read more about this under our topic: Mitral valve stenosis

In rare cases there may also be a lack of the Mitral valve come, this is called Mitral atresia. Overall, the mitral valve is more often affected by malformations and heart valve defects than the Tricuspid valve (Aortic valve), which is located in front of the left ventricle of the heart.

Read more about the topic here: Valvular heart disease