Loss of axons from ventral roots during development.
D000818:Animals; D001001:Anura; D001369:Axons; D009413:Nerve Fibers, Myelinated / Q000254:growth & development; D013126:Spinal Nerve Roots / Q000033:anatomy & histology / Q000254:growth & development; D013127:Spinal Nerves / Q000254:growth & development*