Anterior cerebral artery

The anterior cerebral artery (lat. front brain artery), called with animals rostral cerebral artery, is one of the three main arterial vessels of the brain. It rises in the area of ​​the circle of Willis at the base of the brain from the internal carotid artery. Prior to the chiasm, it forms an anastomosis with the opposite side, the anterior communicating artery is called. This präkommunikale section is called A1 segment. The postkommunikale section, the A2 segment, moves in the further course between the cerebral hemispheres at the bar around. The anterior cerebral artery is referred to herein as the pericallosal artery.

Coverage area

The supply area is subject to a certain degree of individual variability. A rule including the front parts of the hypothalamus, the majority of the basal ganglia ( on arteries centrales ) the basal surface of the frontal lobe and the medial surface of the hemisphere of the frontal and parietal lobe up to the outer edge. In the end zones of their coverage area, it forms small anastomoses with the middle cerebral artery and the posterior cerebral artery. Short branches supply the optic chiasm, the optic nerve and the optic tract.

Failure symptoms

Occlusion of the anterior cerebral artery leads to leg paresis and variable impairment of motor function caused by damage to the supplementary motor cortex. If the Aa. are included centrales, contralateral hemiplegia, central facial palsy may result through lesion of the internal capsule aphasia.

  • Artery of the head
  • Central Nervous System
  • Telencephalon
Cerebral circulation
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