precommunicating part of anterior cerebral artery

pre·com·mu·ni·cating part of anterior cerebral artery

[TA] portion of anterior cerebral artery proximal to the anterior communicating artery. Synonym(s): pars precommunicalis arteriae cerebri anterioris [TA], A1 segment of anterior cerebral artery ☆ , segmentum A1 arteriae cerebri anterioris ☆ , precommunical segment of anterior cerebral artery