ðɪ æntˈiəɹɪɚ pˈɜːfɚɹˌeɪɾᵻd sˈʌbstəns ɪz səplˈaɪd baɪ lˌɛntɪkjʊlˈɑːstɹɪˌeɪt ˈɑːɹɾɚɹiz, wˌɪtʃ bɹˈæntʃ fɹʌmðə mˈɪdəl sɚɹˈiːbɹəl ˈɑːɹɾɚɹi.
The anterior perforated substance is supplied by lenticulostriate arteries, which branch from the middle cerebral artery.