cerebral peduncle Synonym for macrodissected adult human tegmentum (Vicq d'Azyr, 1784; Swanson, 2000); pp. 555-556. Later used thus by for example His (1893b, p. 178), Herrick (1915, p. 160), Strong & Elwyn (1943, p. 17), Carpenter (1976, p. 367), Williams & Warwick (1980, p. 935). cerebral peduncle central nervous system cell part cluster