Anatomy Term: tail bud
XAO ID: 0000107
Definition: "Rapidly proliferating mass of cells at the caudal extremity of the embryo. Its formation is reflected in a caudal carving of the posterior portion of the archenteric canal at NF stage 22. With its further outgrowth, the postanal gut primordium becomes stretched. Its lumen is in broad communication with the hindgut at NF stage 25."
Stage Range: NF stage 25 to NF stage 66
Component Anatomy Items:
is a part of derives from
References: NCBO BioPortal, Ontology Lookup Service