The term transverse temporal gyrus (TTG) refers to a combination of two or three short oblique convolutions in the inferior wall of the lateral fissure (ltf) of the human ( Duvernoy-1992 ). Identified by dissection, it is part of the superior temporal gyrus (STG) located rostral and mediall to the planum temporale (PTE). The TTG is separated from the PTE by the transverse temporal limb of the lateral fissure (ltftt). Most people have two such convolutions, the anterior transverse temporal gyrus (TTGa) and the posterior transverse temporal gyrus (TTGp) ( Carpenter-1983 Ture-1999 ) ). The TTG is not seen in the macaque or in the smooth cerebral cortex (CTX) of the rat or mouse ( NeuroNames ). Updated 2 Sep 2024