Definition

1. Noun:
   • A specific heart valve: The pulmonary valve is a semilunar valve located at the exit of the heart's right ventricle. Its primary function is to prevent the backflow of blood from the pulmonary artery into the ventricle after a contraction.

Usage

• The term "pulmonary valve" is used in medical, anatomical, and biological contexts to describe this specific cardiac structure.
• It is always used as a noun, typically preceded by the definite article "the" when referring to the specific valve in a general or specific heart (e.g., ).

Examples

• Noun:
  • A common congenital heart defect involves a narrowing of the pulmonary valve.
  • During surgery, the surgeon carefully repaired the leaking pulmonary valve.
  • The echocardiogram showed that the pulmonary valve was functioning normally.

Advanced Usage

• "Pulmonary valve stenosis": A medical condition where the pulmonary valve is narrowed, obstructing blood flow from the heart to the lungs.
  • The infant was diagnosed with pulmonary valve stenosis.
• "Pulmonary valve regurgitation": A condition where the pulmonary valve does not close properly, allowing blood to leak back into the right ventricle.
  • The cardiologist detected mild pulmonary valve regurgitation.

Variants and Related Words

• Pulmonic valve (n): A less common but synonymous term for the pulmonary valve.
  • The terms "pulmonary valve" and "pulmonic valve" are interchangeable.

Synonyms

• Semilunar valve: A categorical term describing the shape and type of valve, which includes the pulmonary and aortic valves. (Note: This is a broader term, not a direct synonym in all contexts.)

Related Phrases

• Valve of the pulmonary trunk: Another precise anatomical name for the pulmonary valve.

Noun

1. a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart