bˌʌt, wˌɛn ˌɛsˌeɪtʃˈeɪtʃ ɪz ˈæktɪv ɪnðɪ ˌɛfpˈiː ɹˈiːdʒən, ɡlɪoʊdʒˈɛnᵻsˌɪs ɪz ˈæktᵻvˌeɪɾᵻd ænd ɡlˈaɪəl sˈɛlz bɪɡˈɪn mˈaɪɡɹeɪɾɪŋ tə ðɛɹ tˈɑːɹɡɪɾᵻd dˌɛstɪnˈeɪʃənz tə fˈʌŋkʃən.
But, when Shh is active in the FP region, gliogenesis is activated and glial cells begin migrating to their targeted destinations to function.