Mitral valve

mitralbicuspid valvemitral annulusmitral (or bicuspid) valvemitral valvesbicuspidbicuspid aortic heart valvechordaeleaking mitral valvemitral heart valve
The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle.wikipedia
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Heart valve

heart valvesvalvesatrioventricular valves
The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle. The mitral valve and the tricuspid valve are known collectively as the atrioventricular valves because they lie between the atria and the ventricles of the heart.
The two atrioventricular (AV) valves, the mitral valve (bicuspid valve), and the tricuspid valve, which are between the upper chambers (atria) and the lower chambers (ventricles).

Heart

cardiachuman heartapex of the heart
The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle.
The mitral valve lies between the left atrium and left ventricle.

Atrium (heart)

right atriumatrialeft atrium
The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle.
The left atrium receives the oxygenated blood from the left and right pulmonary veins, which it pumps to the left ventricle (through the mitral valve) for pumping out through the aorta for systemic circulation.

Diastole

diastolicdiastolic pressurerelaxation
In normal conditions, blood flows through an open mitral valve during diastole with contraction of the left atrium, and the mitral valve closes during systole with contraction of the left ventricle.
When pressure in the left ventricle falls below that in the left atrium the mitral valve opens due to a negative pressure differential (suction) between the two chambers, causing blood in the atrium (accumulated during atrial diastole) to flow into the ventricle (see graphic at top).

Mitral valve prolapse

Barlow's syndromemyxomatous degenerationmitral valve prolapse syndrome
Rheumatic heart disease often affects the mitral valve; the valve may also prolapse with age, and be affected by infective endocarditis.
Mitral valve prolapse (MVP; a.k.a. floppy mitral valve syndrome, systolic click murmur syndrome or billowing mitral leaflet) is a valvular heart disease characterized by the displacement of an abnormally thickened mitral valve leaflet into the left atrium during systole.

Papillary muscle

papillary muscles
The chordae tendineae are inelastic tendons attached at one end to papillary muscles in the left ventricle, and at the other to the valve cusps.
They attach to the cusps of the atrioventricular valves (also known as the mitral and tricuspid valves) via the chordae tendineae and contract to prevent inversion or prolapse of these valves on systole (or ventricular contraction).

Chordae tendineae

chordae tendinaetendon of Todarochord
The valve leaflets are prevented from prolapsing into the left atrium by the action of chordae tendineae.
The chordae tendineae (tendinous cords), colloquially known as the heart strings, are tendon-resembling fibrous cords of connective tissue that connect the papillary muscles to the tricuspid valve and the bicuspid valve in the heart.

Systole

systolicsystolic pressureventricular systole
In normal conditions, blood flows through an open mitral valve during diastole with contraction of the left atrium, and the mitral valve closes during systole with contraction of the left ventricle.
The mammalian heart has four chambers: the left atrium above the left ventricle (lighter pink, see graphic), which two are connected through the mitral (or bicuspid) valve; and the right atrium above the right ventricle (lighter blue), connected through the tricuspid valve.

Cardiac cycle

heartbeatheart beatventricular systole
The mitral annulus is saddle shaped and changes in shape throughout the cardiac cycle.
The mitral and tricuspid valves, also known as the atrioventricular, or AV valves, open during ventricular diastole to permit filling.

Artificial heart valve

prosthetic heart valveartificial heart valvesmechanical heart valve
Unlike prosthetic valves, it is not continuous.
The human heart contains four valves: tricuspid valve, pulmonic valve, mitral valve and aortic valve.

Valvular heart disease

heart valve diseasecardiac valve diseasevalve disease
There are some valvular heart diseases that affect the mitral valve.
Valvular heart disease is any disease process involving one or more of the four valves of the heart (the aortic and bicuspid valves on the left side of heart and the pulmonary and tricuspid valves on the right side of heart).

Mitral valve annuloplasty

annuloplasty
Leaking valves can be corrected by mitral valve annuloplasty, a common surgical procedure that aims at restoring proper leaflet adjustment.
Mitral valve annuloplasty is a surgical technique for the repair of leaking mitral valves.

Mitral insufficiency

mitral regurgitationmitral valve diseasemitral valve regurgitation
In abnormal conditions, blood may flow backwards through the valve (mitral regurgitation) or the mitral valve may be narrowed (mitral stenosis).
Mitral regurgitation (MR), Mitral insufficiency (abbreviation MI best avoided because it is more commonly used in lieu of myocardial infarction), or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood.

Ventricle (heart)

ventricleleft ventricleright ventricle
The mitral valve, also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart, that lies between the left atrium and the left ventricle.
The third type, the papillary muscles give origin at their apices to the chordae tendinae which attach to the cusps of the tricuspid valve and to the mitral valve.

Cardiac skeleton

annulusaortic annulusfibrous ring
The mitral annulus is a fibrous ring that is attached to the mitral valve leaflets.
The atrioventricular rings serve for the attachment of the muscular fibers of the atria and ventricles, and for the attachment of the bicuspid and tricuspid valves.

Mitral valve replacement

replacereplacementsurgical replacement
Surgery can be performed to replace or repair a damaged valve.
Mitral valve replacement is a cardiac surgical procedure in which a patient’s diseased mitral valve is replaced by either a mechanical or bioprosthetic valve.

Mitral valve stenosis

mitral stenosismitral valvuloplastymitral atresia
In abnormal conditions, blood may flow backwards through the valve (mitral regurgitation) or the mitral valve may be narrowed (mitral stenosis).
Mitral stenosis is a valvular heart disease characterized by the narrowing of the orifice of the mitral valve of the heart.

Mitral valve repair

mitral-valve heart surgeryrepair a damaged valvesurgically
Surgery can be performed to replace or repair a damaged valve.
Mitral valve repair is a cardiac surgery procedure performed by cardiac surgeons to treat stenosis (narrowing) or regurgitation (leakage) of the mitral valve.

Heart sounds

heartbeatheart soundsecond heart sound
The closing of the mitral valve and the tricuspid valve constitutes the first heart sound (S1), which can be heard with a stethoscope.
First heart sound: caused by atrioventricular valves – Mitral (M) and Tricuspid (T).

Infective endocarditis

bacterial endocarditisinfectious endocarditisAcute infective endocarditis
Rheumatic heart disease often affects the mitral valve; the valve may also prolapse with age, and be affected by infective endocarditis.

Mitre

miterbishop's mitremitred abbot
The mitral valve is named after the mitre of a bishop, which resembles its flaps.
The mitral valve of the human heart, which is located between the left atrium and the left ventricle, is named so because of its similarity in shape to the mitre.

Tricuspid valve

tricuspidtricuspid valvesheart
The mitral valve and the tricuspid valve are known collectively as the atrioventricular valves because they lie between the atria and the ventricles of the heart.

Rheumatic fever

rheumatic heart diseaseacute rheumatic feverrheumatic
Rheumatic heart disease often affects the mitral valve; the valve may also prolapse with age, and be affected by infective endocarditis.

Bishop (disambiguation)

bishopepiscopalepiscopate
The mitral valve is named after the mitre of a bishop, which resembles its flaps.

Tendon

tendonssinewtendinous
The chordae tendineae are inelastic tendons attached at one end to papillary muscles in the left ventricle, and at the other to the valve cusps.