Home
Radiology Guides Anatomy Physio & Path Medicine Physics Contact
CIRCLE OF WILLIS-ANTERIOR CEREBRAL ARTERY (ACA)

Anatomy-Neuroanatomy

CIRCLE OF WILLIS-ANTERIOR CEREBRAL ARTERY (ACA)

ORIGIN
1. The ACA leaves the ICA at the anterior perforated substance and passes above the optic nerve.
2. It is distributed to the orbital surface of the frontal lobe and medial surface of the hemisphere up to the parieto-occipital sulcus.

SUPPLY
3. Motor + sensory areas of the legs, perineum.
4. Micturition + defecation centers.

BRANCHES
5. Medial lenticulostriate a. (from A1 segment).
6. Recurrent Artery of Heubner (from A2 segment).


Avatar
REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: no reference available.

Ⓒ A. Manickam 2018

+ Home