What is ACA anatomy?

What is ACA anatomy?

Anatomical terminology The anterior cerebral artery (ACA) is one of a pair of arteries on the brain that supplies oxygenated blood to most midline portions of the frontal lobes and superior medial parietal lobes.

What part of the brain does anterior cerebral artery supply?

The anterior cerebral artery supplies most of the superior-medial parietal lobes and portions of the frontal lobes with fresh blood. Blood supply to the brain is essential to its functionality, and a lack of blood flow to the vital processes of the brain can cause serious harm.

What is MCA ACA?

The anterior cerebral artery (ACA) supplies the medial portion of the frontal and parietal lobes and anterior portions of basal ganglia and anterior internal capsule. The Sylvian triangle overlies the opercular branches of the middle cerebral artery (MCA), with the apex representing the Sylvian point.

What are the branches of the anterior cerebral artery?


  • A1. medial lenticulostriate arteries. anterior communicating artery.
  • A2. recurrent artery of Heubner. orbitofrontal artery. frontopolar artery.
  • A3. pericallosal artery. callosomarginal artery (runs in the cingulate sulcus)

What happens when ACA is damaged?

ACA infarct can present as contralateral hemiparesis with loss of sensibility in the foot and lower extremity, sometimes with urinary incontinence. This is due to the involvement of the medial paracentral gyrus.

What areas does the ACA supply?

The primary function of the MCA is to supply specific regions of brain parenchyma with oxygenated blood. The cortical branches of the MCA irrigate the brain parenchyma of the primary motor and somatosensory cortical areas of the face, trunk and upper limbs, apart from the insular and auditory cortex.

What structures does the ACA supply?

To summarize, the ACA supplies the medial and superior parts of the frontal lobe, and the anterior parietal lobe. The short anterior communicating artery joins the two anterior cerebral arteries.

What is the Pica artery?

The posterior inferior cerebellar artery (PICA) is the vessel that perfuses the lateral medulla, and is usually occluded due to thrombosis or embolism in its parent vessel, the vertebral artery.

What are the symptoms of ACA stroke?

Findings in ACA stroke may include the following:

  • Disinhibition and speech perseveration.
  • Primitive reflexes (eg, grasping, sucking reflexes)
  • Altered mental status.
  • Impaired judgment.
  • Contralateral weakness (greater in legs than arms)
  • Contralateral cortical sensory deficits.
  • Gait apraxia.
  • Urinary incontinence.

Does ACA stroke cause aphasia?

is an uncommon cause of stroke. The clinical findings of ACA infarctions are not fully characterized but include contralateral hemiparesis, urinary incon- tinence, transcortical aphasia, agraphia, apraxia, and executive dysfunction.