VALVULA SEMILUNARIS Meaning and
Definition
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The term "valvula semilunaris" refers to a part of the human anatomy and specifically refers to the semilunar valve. The semilunar valve is a valve present in the heart that is responsible for regulating the flow of blood from the heart into the major blood vessels, the aorta, and the pulmonary artery.
The valvula semilunaris consists of three cusps or flaps that are shaped like a crescent moon, hence the name semilunar. These cusps of the valve are composed of dense connective tissue covered with a smooth layer of endothelium. The three cusps, also known as leaflets, are thin, flexible structures that are capable of opening and closing to allow the passage of blood.
When the heart contracts and ejects blood into the major blood vessels, the valvula semilunaris opens up to allow the blood to pass through. However, when the heart relaxes and blood tries to flow backward, the cusps of the valve close tightly, preventing the blood from flowing back into the heart.
The proper functioning of the valvula semilunaris is crucial for maintaining an efficient and unidirectional flow of blood throughout the circulatory system. Any dysfunction or abnormality in this valve can lead to heart conditions like stenosis (narrowing) or insufficiency (leakage), which can affect the overall cardiovascular health.
In conclusion, the valvula semilunaris refers to the semilunar valve in the heart responsible for regulating blood flow into the major blood vessels, ensuring efficient circulation throughout the body.
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One of three semilunar segments serving as the three cusps of a valve preventing regurgitation at the beginning of the aorta; a similar valve guards the entrance of the pulmonary artery, the segments are named, respectively, v.s. anterior, dextra, and sinistra in the right ventricle, and v.s. posterior, dextra, and sinistra in the left ventricle.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for VALVULA SEMILUNARIS
- calvula semilunaris
- balvula semilunaris
- galvula semilunaris
- falvula semilunaris
- vzlvula semilunaris
- vslvula semilunaris
- vwlvula semilunaris
- vqlvula semilunaris
- vakvula semilunaris
- vapvula semilunaris
- vaovula semilunaris
- valcula semilunaris
- valbula semilunaris
- valgula semilunaris
- valfula semilunaris
- valvyla semilunaris
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- valvjla semilunaris
- valvila semilunaris
- valv8la semilunaris
Etymology of VALVULA SEMILUNARIS
The word "valvula semilunaris" is derived from Latin.
The term "valvula" comes from the Latin word "valva", which means "a folding door" or "a valve". This refers to the function of the structure it describes, as it acts like a valve in the body.
The word "semilunaris" is also derived from Latin. It is a combination of "semi", meaning "half", and "lunaris", meaning "moon". This is because the structure resembles a crescent moon or half-moon shape.
Therefore, "valvula semilunaris" can be roughly translated to mean "half-moon-shaped valve". This term is often used to refer to valves found in the human body, such as the semilunar valves in the heart.
