The pectoral girdle is supported by muscle, and the well-developed pelvic girdle is attached to the backbone by a pair of sacral ribs.
ðə pˈɛktɚɹəl ɡˈɜːdəl ɪz səpˈoːɹɾᵻd baɪ mˈʌsəl, ænd ðə wˈɛldɪvˈɛləpt pˈɛlvɪk ɡˈɜːdəl ɪz ɐtˈætʃt tə ðə bˈækboʊn baɪ ɐ pˈɛɹ ʌv sˈækɹəl ɹˈɪbz.