əpˌɑːn ɹˈiːtʃɪŋ ðə flˈoːɹ plˈeɪt, kəmˈɪʃɚɹəl nˈʊɹɹɑːnz kɹˈɔs θɹuː ðə stɹˈʌktʃɚ tʊ ɪmˈɜːdʒ ɔnðɪ ˈɑːpəzˌɪt sˈaɪd ʌvðə nˈʊɹɹəl tˈuːb, wˈɛɹəpˌɑːn ðeɪ pɹədʒˈɛkt æntˈiəɹɪɚli ɔːɹ pɑːstˈɪɹiɚli wɪðˌɪn ðə tˈuːb.
Upon reaching the floor plate, commissural neurons cross through the structure to emerge on the opposite side of the neural tube, whereupon they project anteriorly or posteriorly within the tube.