MITRAL ORIFICE Meaning and
Definition
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The mitral orifice is a anatomical term used in reference to the human heart and cardiovascular system. It specifically denotes an essential opening located between the left atrium and the left ventricle. Also known as the bicuspid orifice, the mitral orifice is shaped like a narrow oval and is surrounded by a valve called the mitral valve, which consists of two leaflets (flaps). The function of the mitral orifice is to regulate the flow of blood in a unidirectional manner during the pumping action of the heart.
During diastole, or the relaxation phase of the cardiac cycle, the mitral valve opens, allowing the oxygenated blood from the left atrium to flow into the left ventricle, where it is subsequently pumped out to the rest of the body during systole. This ensures efficient blood circulation and prevents backflow of blood into the atrium. The proper functioning of the mitral orifice is crucial for maintaining healthy cardiac output and preventing conditions such as mitral regurgitation, where blood leaks back into the atrium due to a faulty mitral valve.
Various medical procedures, such as mitral valve repair or replacement, may be indicated when there are abnormalities affecting the mitral orifice. These abnormalities can include stenosis (narrowing) or prolapse (bulging) of the leaflets, which can impair the normal functioning of the mitral valve and compromise overall heart function.
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The left atrioventricular aperture.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MITRAL ORIFICE
- nitral orifice
- kitral orifice
- jitral orifice
- mutral orifice
- mjtral orifice
- mktral orifice
- motral orifice
- m9tral orifice
- m8tral orifice
- mirral orifice
- mifral orifice
- migral orifice
- miyral orifice
- mi6ral orifice
- mi5ral orifice
- miteal orifice
- mitdal orifice
- mitfal orifice
- mittal orifice
- mit5al orifice
Etymology of MITRAL ORIFICE
The word "mitral" comes from the Latin word "mitra", which means "a headdress" or "a turban". The mitral valve in the heart was named so because of its resemblance to a bishop's mitre.
The word "orifice" has its roots in the Latin word "orificium", which means "an opening" or "a mouth". It is derived from the combination of the Latin words "oris" meaning "mouth" and "facere" meaning "to make".
When these two words are combined, "mitral orifice" refers to the opening or passage between the left atrium and the left ventricle of the heart, which is surrounded by the mitral valve.
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