Definition

Noun: 1. A major artery of the brain: The middle cerebral artery (MCA) is one of the two primary terminal branches of the internal carotid artery. It is a critical vessel that supplies oxygenated blood to large portions of the cerebral cortex, including areas responsible for motor function, sensation, and language. 2. Anatomical structure with key branches: After its origin, the middle cerebral artery typically travels laterally and divides into several branches (often described as dividing into superior, inferior, and deep branches) to irrigate specific brain regions.

Usage Examples

• Noun:
  • An occlusion of the middle cerebral artery is a common cause of ischemic stroke.
  • The surgeon carefully dissected around the middle cerebral artery to access the deeper aneurysm.
  • The scan showed a normal flow of blood through the middle cerebral artery.

Advanced Usage

• "MCA territory": Refers to the specific area of the brain supplied by the middle cerebral artery. Damage to this territory results in predictable neurological deficits.
  • The MRI showed an infarction in the left MCA territory, explaining the patient's aphasia.
• "MCA syndrome": A clinical presentation resulting from a stroke in the middle cerebral artery, often characterized by contralateral weakness, sensory loss, and, if in the dominant hemisphere, language impairment.
  • The patient was admitted with a classic right MCA syndrome.

Variants and Related Words

• MCA: A common acronym for "middle cerebral artery."
  • The report noted a narrowing of the proximal MCA.
• Internal Carotid Artery (ICA): The parent artery from which the middle cerebral artery originates.
• Anterior Cerebral Artery (ACA): The other terminal branch of the internal carotid artery, supplying different brain regions.

Synonyms

• There are no direct anatomical synonyms for the "middle cerebral artery" as it is a specific, named structure. In general anatomical contexts, it can be referred to as a cerebral artery or a major cerebral vessel.

Related Phrases

• "Branch of the middle cerebral artery": Refers to one of its subdivisions (e.g., the superior trunk).
  • The aneurysm was located on a cortical branch of the middle cerebral artery.
• "Middle cerebral artery distribution": Functionally synonymous with "MCA territory," describing the area it supplies.
  • The symptoms were consistent with an event in the middle cerebral artery distribution.

Noun

1. one of two branches of the internal carotid artery; divides into three branches