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Summary Anatomy Item Literature (7) Expression Attributions Wiki

Anatomy Term: urostyle
XAO ID: 0003080
Definition: "Skeletal element in the midline of the pelvic girdle that arises from somites 10-13. It is a rodlike caudal bony structure unique to anurans that lies within a compartment formed by the elongated, anteriorly oriented pelvic girdle. It is formed by the fusion of the neural arches of the 10th-13th vertebrae, and the posterior-most remnants of the hypochord. Timing of complete ossification varies between NF stages 62 and 66."
Stage Range: NF stage 48 to death
Marker Genes:
Develops From:
Anatomy Item Stage Range
hypochord NF stage 24 to NF stage 63
trunk somite 10 NF stage 24 to NF stage 47
trunk somite 11 NF stage 24 to NF stage 47
trunk somite 12 NF stage 25 to NF stage 47
trunk somite 13 NF stage 26 to NF stage 47
Develops Into:
Parent(s): hypochord, trunk somite 10, trunk somite 11, trunk somite 12, trunk somite 13


Parent(s): bone element (is_a) postcranial axial skeleton (part_of)


References: Ontology Lookup Service , XB ANATOMY ONTOLOGY