Section 49-6-401 - "Junior high schools" and "senior high schools" defined(a) "Junior high schools" are schools in which are taught any combination of grades corresponding to grade seven through grade ten (7-10); however, the school must include grade nine (9).(b) "Senior high schools" are schools in which are taught any combination of grades corresponding to grade nine through grade twelve (9-12); however, the school must include grade twelve (12).Acts 1925, ch. 115, § 14; Shan. Supp., § 1487a93; Code 1932, § 2384; Acts 1931, ch. 71, § 1; C. Supp. 1950, §§ 2393.2, 2393.3; Acts 1980, ch. 498, §§ 1, 2; T.C.A. (orig. ed.), §§ 49-1102, 49-1103.