. "\"The establishment, maintenance and elaboration of the rostro-caudal axis of a somite, prior to the morphological formation of a somite boundary.\" [GOC:bf, PMID:16326386, PMID:17360776]" . . "somite rostral/caudal axis specification" . "somite rostrocaudal axis specification" . . . . "somite rostrocaudal polarity" .