Definition

1. Noun:
   • A blood vessel carrying oxygenated blood from the lungs to the heart: The pulmonary vein is one of the four veins that transport blood rich in oxygen from the lungs back to the left atrium of the heart. This is unique, as most other veins in the body carry deoxygenated blood.

Usage

• The term "pulmonary vein" is used in anatomical, medical, and biological contexts to describe this specific part of the circulatory system.
• It is typically used with definite or indefinite articles ("the pulmonary vein," "a pulmonary vein") or in the plural form ("the pulmonary veins").

Examples

• Noun:
  • The surgeon carefully reconnected the pulmonary vein during the transplant procedure.
  • Oxygenated blood returns to the heart via the pulmonary veins.
  • A blockage in one of the pulmonary veins can cause serious health issues.

Advanced Usage

• "Pulmonary venous return": Refers to the flow of blood from the lungs back to the heart through the pulmonary veins.
  • The echocardiogram assessed the patient's pulmonary venous return.

Variants and Related Words

• Pulmonary (adj): Relating to the lungs.
  • Pulmonary function tests measure lung capacity.
• Vein (n): A blood vessel that carries blood toward the heart.
  • The nurse drew blood from a vein in his arm.
• Pulmonary artery (n): The artery that carries deoxygenated blood from the heart to the lungs. (This is a related but distinct structure, often discussed in contrast to the pulmonary vein.)

Synonyms

• Venae pulmonales (Anatomical Latin term)
• Pulmonary venous vessel (Descriptive synonym)

Notes on Meaning

• The pulmonary vein is an exception to the general rule that veins carry deoxygenated blood. It is a central component in the pulmonary circulation, the circuit between the heart and the lungs.
• The four pulmonary veins (two from each lung) are often identified individually: right superior, right inferior, left superior, and left inferior pulmonary veins.

Noun

1. any of four veins that carry arterial blood from the lungs to the left atrium of the heart