ðə pˈɑːɹt wˌɪtʃ fˈɔːɹmz ðə lˈæɾɚɹəl wˈɔːl kɹˈuːz lˈæɾɚɹˌeɪl ɪz kˈɜːvd tə kˌɔːɹɪspˈɑːnd wɪððɪ ɐlˈæ ʌvðə nˈoʊz; ɪɾ ɪz ˈoʊvəl ænd flˈæʔn̩d, nˈæɹoʊ bᵻhˈaɪnd, wˌɛɹ ɪɾ ɪz kənˈɛktᵻd wɪððə fɹˈʌntəl pɹˈɑːsɛs ʌvðə mæksˈɪlə baɪ ɐ tˈʌf fˈɪbɹəs mˈɛmbɹeɪn, ɪnwˌɪtʃ ɑːɹ fˈaʊnd θɹˈiː ɔːɹ fˈoːɹ smˈɔːl kˌɑːɹɾɪlˈædʒɪnəs plˈeɪts, ðə lˈɛsɚɹ ɐlˈɑːɹ kˈɑːɹɾɪlɪdʒᵻz kˈɑːɹɾɪlˌædʒɪnz ɐlˈɛɹz mˈaɪnoːɹz; sˈɛsɐmˌɔɪd kˈɑːɹɾɪlɪdʒᵻz.
The part which forms the lateral wall (crus laterale) is curved to correspond with the ala of the nose; it is oval and flattened, narrow behind, where it is connected with the frontal process of the maxilla by a tough fibrous membrane, in which are found three or four small cartilaginous plates, the lesser alar cartilages (cartilagines alares minores; sesamoid cartilages).