The anterior cerebral artery (Latin: arteria cerebri anterior) is one of the terminal branches of the internal carotid artery that supplies the medial aspects of the frontal and parietal lobes of the cerebral hemispheres.
The artery passes medial to the great longitudinal fissure. It then winds around the genu of the corpus callosum and goes along the medial surface of the hemisphere, reaching the parietooccipital sulcus.
The anterior cerebral artery can be divided into three parts:
The anterior cerebral artery gives rise to cortical and central branches.
There are five cortical branches of the anterior cerebral artery:
The cortical branches of the anterior cerebral artery supply the areas of the motor and somatosensory cortices, orbital gyrus, gyrus rectus, medial surface of the frontal and parietal lobes, cingulate gyrus, and the fornix.
The central branches of the anterior cerebral artery arise from its proximal portion and include the following:
The central branches of the anterior cerebral artery supply the corpus callosum, septum pellucidum, anterior part of the putamen, head of the caudate nucleus, putamen, and the internal capsule.