embryonic Malpighian tubule tip cell anterior Malpighian tubule tip cell embryonic anterior Malpighian tubule tip cell 2025-01-14T18:00:58Z FBbt:00053325 Tip cell of an anterior-projecting embryonic Malpighian tubule. During tubule elongation it moves anteriorly, contacting alary muscles at the A5/A6, A4/A5, and finally the A3/A4 segmental boundaries (Weavers and Skaer, 2013). fly_anatomy.ontology