Definition

1. Noun:
   • A specific heart valve: The "right atrioventricular valve" is a cardiac valve located between the heart's right atrium and right ventricle. Its primary function is to regulate blood flow, allowing it to move from the atrium to the ventricle and then closing to prevent backflow when the ventricle contracts. It typically has three triangular flaps or cusps.

Usage Examples

• Noun:
  • The echocardiogram showed a slight leak in the right atrioventricular valve.
  • A common congenital defect affects the proper formation of the right atrioventricular valve.
  • The surgeon carefully repaired the damaged right atrioventricular valve.

Advanced Usage

• "Function of the right atrioventricular valve": Refers specifically to its physiological role in unidirectional blood flow within the heart.
  • The lecture detailed the precise function of the right atrioventricular valve during the cardiac cycle.

Variants and Related Words

• Tricuspid valve (n): This is the more common anatomical name for the right atrioventricular valve.
  • The terms "tricuspid valve" and "right atrioventricular valve" are synonymous in medical texts.
• Atrioventricular valve (n): A general term for the valves between the atria and ventricles, which includes both the right (tricuspid) and left (mitral/bicuspid) valves.
  • The two atrioventricular valves are crucial for preventing the regurgitation of blood.

Synonyms

• Tricuspid valve: The direct and most frequently used synonym in medical and anatomical contexts.

Related Phrases

• Valve regurgitation: A condition where a valve, such as the right atrioventricular valve, does not close tightly, allowing blood to leak backward.
  • Severe right atrioventricular valve regurgitation can lead to heart failure.
• Valve prolapse: A condition where the valve's cusps bulge back into the atrium during ventricular contraction.
  • Tricuspid valve prolapse is less common than mitral valve prolapse.

Noun

1. valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contracts