postcommunicating part of anterior cerebral artery

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

[TA] portion of anterior cerebral artery distal to the anterior communicating artery. Based on recent clinical observations, the postcommunicating part of the anterior cerebral artery may be divided into segments A2-A5. Synonym(s): pars postcommunicalis arteriae cerebri anterioris [TA], A2 segment of anterior cerebral artery ☆ , segmentum A2 arteriae cerebri anterioris ☆