TRICUSPID ORIFICE Meaning and
Definition
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The tricuspid orifice is a term used in anatomy and medicine to describe an opening in the heart between the right atrium and right ventricle. It is specifically located between the tricuspid valve and the conus arteriosus or infundibulum, which is the outflow portion of the right ventricle.
The tricuspid orifice allows for the flow of blood from the right atrium to the right ventricle, facilitating oxygen-depleted blood to be pumped to the lungs for oxygenation. This opening is bordered by the tricuspid valve, which consists of three leaflets or cusps. These cusps open during the relaxation phase of the heart, known as diastole, allowing blood to flow from the atrium to the ventricle. Once the ventricle contracts during systole, the cusps close to prevent backflow of blood into the atrium and ensure unidirectional blood flow.
Abnormalities or dysfunctions related to the tricuspid orifice can result in conditions like tricuspid regurgitation or tricuspid stenosis. Tricuspid regurgitation occurs when the valve does not close properly during systole, leading to blood leaking back into the atrium. Tricuspid stenosis, on the other hand, is a narrowing of the tricuspid orifice, causing obstruction to blood flow between the atrium and ventricle.
In summary, the tricuspid orifice is a crucial anatomical structure in the heart, responsible for regulating the flow of blood between the right atrium and right ventricle.
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The right atrioventricular aperture of the heart, guarded by the t. valve.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for TRICUSPID ORIFICE
- rricuspid orifice
- fricuspid orifice
- gricuspid orifice
- yricuspid orifice
- 6ricuspid orifice
- 5ricuspid orifice
- teicuspid orifice
- tdicuspid orifice
- tficuspid orifice
- tticuspid orifice
- t5icuspid orifice
- t4icuspid orifice
- trucuspid orifice
- trjcuspid orifice
- trkcuspid orifice
- trocuspid orifice
- tr9cuspid orifice
- tr8cuspid orifice
- trixuspid orifice
- trivuspid orifice
Etymology of TRICUSPID ORIFICE
The word "tricuspid" comes from the Latin word "tricuspidatus", which means "having three points" or "three-pointed". It originates from the combination of "tri-" meaning "three" and "cuspidatus" meaning "a point".
The word "orifice" has its roots in the Latin word "orificium", which means "mouth" or "opening". It is a combination of "oris" meaning "mouth" and "facere" meaning "to make".
When combined, "tricuspid orifice" refers to the three-pointed opening or valve, specifically related to the tricuspid valve in the heart.
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