Definition

Noun: A valve in the heart that controls the one-way flow of blood from an atrium to a ventricle. There are two such valves: the mitral valve (on the left side) and the tricuspid valve (on the right side). Its primary function is to prevent the backflow of blood into the atrium when the ventricle contracts.

Usage

The term "atrioventricular valve" is used in medical and anatomical contexts to describe a specific cardiac structure. - It functions as a critical component in maintaining the correct direction of blood flow during the cardiac cycle. - It is typically discussed in relation to heart anatomy, physiology, or pathologies.

Examples

• Noun:
  • The echocardiogram showed that the atrioventricular valve was functioning properly.
  • A common congenital defect can involve a malformed atrioventricular valve.
  • The surgeon repaired the leaky atrioventricular valve.

Advanced Usage

• "Atrioventricular valve dysfunction": Refers to any condition where the valve does not open or close properly, such as stenosis (narrowing) or regurgitation (leaking).
  • The patient was diagnosed with atrioventricular valve dysfunction, requiring close monitoring.
• "Atrioventricular valve replacement": A surgical procedure to install an artificial or biological valve.
  • He underwent an atrioventricular valve replacement last year.

Variants and Related Words

• Mitral valve (n): The specific atrioventricular valve located between the left atrium and left ventricle.
  • Mitral valve prolapse is a common condition.
• Tricuspid valve (n): The specific atrioventricular valve located between the right atrium and right ventricle.
  • The tricuspid valve has three leaflets or cusps.
• Semilunar valve (n): The other category of heart valves (aortic and pulmonary), which are distinct from atrioventricular valves.
  • Blood exits the ventricles through the semilunar valves.

Synonyms

• AV valve (n): A common abbreviation.
  • The cardiologist listened for a murmur at the AV valve.
• Cuspid valve (n): An older, less common term.

Related Phrases

• "Atrioventricular valve prolapse": A condition where the valve leaflets bulge back into the atrium during ventricular contraction.
  • Her atrioventricular valve prolapse was mild and asymptomatic.
• "Atrioventricular valve annulus": The ring-like structure that forms the base of the valve.
  • The repair focused on the atrioventricular valve annulus.

Noun

1. either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium