ðɪ ɪnfˈɪɹiɚ θˈɜːd ʌvðə mˈiːdiːəl bˈoːɹdɚɹ ʌvðə hjˈuːmɚɹəs ɪz ɹˈeɪzd ˌɪntʊ ɐ slˈaɪt ɹˈɪdʒ, ðə mˈiːdiːəl sˈuːpɹəkəndˌɪlɚ ɹˈɪdʒ ɔːɹ mˈiːdiːəl sˈuːpɹəkəndˌɪlɚ lˈaɪn, wˌɪtʃ bɪkˌʌmz vˈɛɹi pɹˈɑːmɪnənt bᵻlˈoʊ; ɪt pɹɪzˈɛnts ɐn æntˈiəɹɪɚ lˈɪp fɚðɪ ˈɔːɹɪdʒˌɪnz ʌvðə bɹˈeɪʃəliz ænd pɹənˈeɪɾɚ tˈɪɹz, ɐ pɑːstˈɪɹiɚ lˈɪp fɚðə mˈiːdiːəl hˈɛd ʌvðə tɹˈaɪsɛps bɹˈækɪˌaɪ, ænd ɐn ˌɪntɚmˈiːdiət ɹˈɪdʒ fɚðɪ ɐtˈætʃmənt ʌvðə mˈiːdiːəl ˌɪntɚmˈʌskjʊlɚ sˈɛptəm.
The inferior third of the medial border of the humerus is raised into a slight ridge, the medial supracondylar ridge (or  medial supracondylar line), which becomes very prominent below; it presents an anterior lip for the origins of the Brachialis and Pronator teres, a posterior lip for the medial head of the Triceps brachii, and an intermediate ridge for the attachment of the medial intermuscular septum.