Definition

Noun: - A major blood vessel of the heart: The left coronary artery is an artery that arises from the left aortic sinus of the aorta. Its primary function is to supply oxygenated blood to the left side of the heart muscle, including the left ventricle and left atrium.

Usage

• The term is used in medical, anatomical, and clinical contexts to describe a specific part of the heart's circulatory system.
• It is often discussed in relation to heart health, coronary artery disease, and surgical procedures.

Examples

• Noun:
  • Blockage in the left coronary artery is a common cause of heart attacks.
  • The surgeon carefully bypassed the diseased left coronary artery.

Advanced Usage

• "Left main coronary artery (LMCA)": This is a more specific term often used interchangeably or as a subdivision. It refers to the initial segment of the left coronary artery before it bifurcates.
  • Stenosis of the left main coronary artery is a particularly serious condition.

Variants and Related Words

• Left anterior descending artery (LAD): A major branch of the left coronary artery.
• Circumflex artery (LCx): Another major branch of the left coronary artery.
• Coronary artery: The general category of arteries supplying the heart muscle.
• Right coronary artery (RCA): The artery supplying the right side of the heart.

Synonyms

• Left main coronary artery (in specific usage)
• LMCA (acronym)

Notes on Meaning

This term refers strictly to an anatomical structure. It does not have idiomatic or phrasal verb uses. Its meaning is fixed within medical and biological sciences.

Noun

1. arises from the left aortic sinus; supplies the left side of the heart