Definition

1. Noun:
   • An artery in the brain that forms part of the Circle of Willis: A "communicating artery" is any of the small arteries that connect the larger arteries at the base of the brain, forming a critical circulatory structure known as the Circle of Willis.

Usage

• The term is used in medical and anatomical contexts to describe specific blood vessels in the cerebral circulation.
• It is typically preceded by "anterior" or "posterior" to specify which of the communicating arteries is being discussed.

Examples

• Noun:
  • The anterior communicating artery connects the two anterior cerebral arteries.
  • A blockage in a communicating artery can affect blood flow in the Circle of Willis.

Advanced Usage

• "Anterior communicating artery (ACoA)": The artery that connects the left and right anterior cerebral arteries.

  • An aneurysm of the anterior communicating artery is a serious medical condition.

• "Posterior communicating artery (PCoA)": Either of the two arteries that connect the posterior cerebral artery to the internal carotid artery on each side.

  • The posterior communicating artery is a common site for cerebral aneurysms.

Variants and Related Words

• Circle of Willis (n): The complete ring of arteries at the base of the brain, formed in part by the communicating arteries.

  • The Circle of Willis provides collateral blood flow to the brain.

• Cerebral artery (n): Any of the arteries supplying blood to the cerebrum of the brain.

  • The middle cerebral artery is a major branch.

Synonyms

• Connecting artery: A descriptive synonym emphasizing its function of linking other vessels. (Used in anatomical description)
• Anastomotic artery: A technical term for an artery that forms a connection between two other vessels.

Related Phrases

• Communicating artery aneurysm: A pathological bulging or ballooning of a communicating artery wall.

  • Surgery is often required for a communicating artery aneurysm.

• Communicating artery segment: A specific anatomical portion of the artery.

  • The surgeon carefully clipped the aneurysm at the communicating artery segment.

Noun

1. any of three arteries in the brain that make up the circle of Willis