Hierarquia Anatômica

Territórios vasculares arteriais > Artéria cerebral anterior

Traduções

Descrição

The anterior cerebral artery (ACA ) supplies the medial part of the frontal and the parietal lobe and the anterior portion of the corpus callosum, basal ganglia and internal capsule. 

It may be divided into segments :

  • A1 segment: from origin to anterior communicating artery and gives rise to medial lenticulostriate arteries. It supplies the inferior parts of the head of the caudate and the anterior limb of the internal capsule with the medial lenticulostriate arteries (Heubner's artery is the largest of the medial lenticulostriate arteries and supplies the anteromedial part of the head of the caudate and anterior inferior internal capsule).
  • A2 segment: from anterior communicating artery to bifurcation of pericallosal and callosomarginal arteries.
  • A3 segment: major branches and distal part of the ACA. It supplies the medial portions of frontal lobes, superior medial part of parietal lobes, anterior part of the corpus callosum.

Stroke pattern:

  • Left-sided: mutism, transcortical motor aphasia, hemiparesis, left-arm apraxia and callosal disconnection syndromes
  • Right-sided: acute confusional state, hemiparesis, motor neglect
  • Bilateral infarct: akinetic mutism, gait apraxia, paraparesis, sphincter dysfunction, basal ganglia symptoms (parkinsonian gait, tremor, facial dystonia).

The vascular territories in the cerebellum and brainstem: CT and MR study. by Savoiardo M, Bracchi M, Passerini A, Visciani A. AJNR Am J Neuroradiol. 1987 Mar-Apr;8(2):199-209. Oxford Textbook of Stroke and Cerebrovascular Disease - Bo Norrving - Oxford University Press, 2019

Imagens

Baixar e-Anatomy

Usuários de smartphone e tablet, vocês podem baixar e-Anatomy na Appstore ou GooglePlay.

e-Anatomy na Appstore e-Anatomy no Googleplay