Definition

1. Noun:
   • A component artery of the cerebral arterial circle: "arteria communicans" refers to any of the small connecting arteries that form part of the circle of Willis, a critical circulatory structure at the base of the brain. These arteries link the major cerebral arteries to create a redundant blood supply network.

Usage Examples

• Noun:
  • The surgeon carefully avoided damaging the arteria communicans during the procedure.
  • A blockage in an arteria communicans can compromise the collateral blood flow in the circle of Willis.

Advanced Usage

• Anatomical specificity: The term is often used in its plural form, arteriae communicantes, to refer to the set of these arteries. In precise anatomical discussion, the anterior and posterior communicating arteries are specified.
  • The arteriae communicantes are vital for maintaining cerebral perfusion if a major artery becomes occluded.

Variants and Related Words

• Communicating artery: The English equivalent term.
  • The posterior communicating artery connects the internal carotid and posterior cerebral arteries.
• Circle of Willis: The complete arterial ring at the brain's base, of which the arteria communicans is a part.
• Anterior communicating artery (ACA): A specific arteria communicans connecting the two anterior cerebral arteries.
• Posterior communicating artery (PCA): A specific arteria communicans connecting the internal carotid artery to the posterior cerebral artery.

Synonyms

• Connecting artery: A descriptive synonym emphasizing its function.
• Communicans artery: A less common variant of the English term.

Notes on Meaning

This is a specialized anatomical term. Its meaning is fixed and technical, referring specifically to the arteries within the cerebral circulation's circle of Willis. It does not have general or figurative meanings outside of medical and biological contexts.

Noun

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