Dictionary » M » Mitral valve

Mitral valve

Definition

noun, plural: mitral valves

The valve between the left atrium and left ventricle of the heart, and has two triangular flaps of tissue that opens to allow blood to flow into the left ventricle and closes to prevent blood regurgitation into the left atrium


Supplement

The mitral valve is a valve in the heart located between the left atrium and left ventricle of the heart. The name comes from the Latin mitra for mitre. The mitral valve resembles the shape of a miter (or mitre). Since the mitral valve consists of two flaps of tissues it is also referred to as bicuspid valve (etymologically, bi- is from Latin, meaning double). Another term for it is left atrioventricular valve because of its anatomical position. The mitral valve together with the tricuspid valve makes up the atrioventricular valves.

During diastole, the mitral valve opens and allows the flow of blood into the left ventricle. The flaps close the passage to prevent the back flow of blood back to the left atrium.


Synonym(s):

  • bicuspid valve
  • left atrioventricular valve

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heart failure

... (increases the metabolic demand by the tissues.) c. Stenosis of the mitral valve (causes damage to heart muscle.) d. Diabetes (is associated with weight gain ) e. Calcification ...

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by zak
Fri Nov 22, 2013 6:44 pm
 
Forum: Human Biology
Topic: heart failure
Replies: 2
Views: 4434

what causes us to breathe

... (increases the metabolic demand by the tissues.) c. Stenosis of the mitral valve (causes damage to heart muscle.) d. Diabetes (is associated with weight gain ) e. Calcification ...

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by zak
Thu Nov 21, 2013 10:20 am
 
Forum: Human Biology
Topic: what causes us to breathe
Replies: 23
Views: 16690

Heart : Difference between tricuspid and bicuspid valves ?

Hi, at a guess, the tricuspid valve (separating the right atrium from the right ventriclel) has three cusps (flaps) ... on the left hand side, where a two-flap valve (bicuspid - also known as the mitral valve, because it looks like a bishop's mitre!) will cover the space adequately. ...

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by Julie5
Sun Oct 24, 2010 10:45 am
 
Forum: Human Biology
Topic: Heart : Difference between tricuspid and bicuspid valves ?
Replies: 3
Views: 35401

The Fiber Disease

... I have Osteo ( I call it Lyme arthritis). Then, there is the prolapsed mitral valve - that is new in the last 10 years. New to me, that is. As I stated, the Myco (Fermentans ...

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by J Jill
Sun Oct 08, 2006 4:32 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6133255

Sequence of events in heart

... "used blood" from the body. Blood will be pushed through the tricuspid valve to the 2. Right Ventricle, the chamber which will pump to the lungs ... which empty into the 5. Left Atrium, a chamber which will push the Mitral Valve open. Blood then passes into the 6. Left Ventricle. Although ...

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by biostudent84
Thu Nov 10, 2005 5:56 pm
 
Forum: Human Biology
Topic: Sequence of events in heart
Replies: 4
Views: 4928
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