The lingual septum consists of a vertical layer of fibrous tissue, extending throughout the entire length of the median plane of the tongue, though not quite reaching the dorsum.
ðə lˈɪŋɡwəl sˈɛptəm kənsˈɪsts əvə vˈɜːɾɪkəl lˈeɪɚɹ ʌv fˈɪbɹəs tˈɪʃuː, ɛkstˈɛndɪŋ θɹuːˈaʊt ðɪ ɛntˈaɪɚ lˈɛŋθ ʌvðə mˈiːdiːən plˈeɪn ʌvðə tˈʌŋ, ðˌoʊ nˌɑːt kwˈaɪt ɹˈiːtʃɪŋ ðə dˈoːɹsəm.