2024年5月28日 · The anterior cerebral artery (ACA), along with the middle cerebral artery (MCA) forms at the termination of the internal carotid artery (ICA). It is the smaller of the two and arches anteromedially to pass anterior to the genu of the corpus callosum, dividing as it does so into its two major branches: the pericallosal and callosomarginal arteries

大脑前动脉（aca）是颈内动脉的主要分支之一，是供应大脑半球内侧的主要动脉。aca经胼胝体膝部至其背侧面，沿胼胝体沟向后穿行至胼胝体压部稍前方，并分出终末支。见下图。 以下是颈内动脉、aca和大脑中动脉的正、…

The anterior cerebral artery (ACA) contains anatomical variants that are closely related to its embryology and development. In this study, the authors reviewed the most commonly encountered variants of the ACA and anterior communicating artery.

2024年10月31日 · A1: Also known as the horizontal segment, this section runs horizontally from the origin of the ACA for 14 millimeters (mm) to the anterior communicating artery, which plays a role in connecting the blood supply between the right and left hemispheres.

2023年10月30日 · The anterior cerebral artery is the terminal branch of the communicating segment (C7) of the internal carotid artery. Being located in the anterior and medial aspects of the interhemispheric fissure, the anterior cerebral artery supplies a large portion of the medial cerebral hemispheric surfaces namely the corpus callosum , frontal, parietal ...

The anterior cerebral artery (ACA) is one of a pair of cerebral arteries that supplies oxygenated blood to most midline portions of the frontal lobes and superior medial parietal lobes of the brain. The two anterior cerebral arteries arise from the internal …

Some variations of the ACA relate to its early supply to the orbit via the ventral ophthalmic artery (see example below) — for example, the infraoptic course of the ACA is persistence of the ventral ophthalmic in setting of “true” A1 hypoplasia.

The anterior cerebral artery is defined as a branch of the internal carotid artery that runs above the optic nerve and supplies blood to the medial surface of the hemisphere, including the orbital, frontal, and parietal regions.

A1 Branches: Anterior Communicating Artery (connects both sides of anterior circulations). Medial Lenticulostriate Arteries (supply basal ganglia, anterior limb of internal capsule). Recurrent Artery of Heubner

前交通动脉动脉瘤(anterior communicating arteryaneurysm, ACoAA)占所有颅内动脉瘤的30%左右，其发生及形态与大脑前动脉A1段关系密切。 一侧大脑前动脉A1段优势供血及A1段与A2段夹角是ACoAA形成和发展的重要因素。