Inferior temporal gyrus
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The inferior temporal gyrus (ITG) isis the most ventral of the three gyri on the lateral surface of the temporal lobe.
Gross anatomy
The ITGinferior temporal gyrus is bounded above by the inferior temporal sulcus and and below by the lateral occipitotemporal sulcus(which sits on the inferior surface of the temporal lobe). Its anterior and posterior limits are defined similar to the middle temporal gyrus 1.
Blood supply
The ITGinferior temporal gyrus is supplied by all four temporal branches of the middle cerebral artery that emerge from the lateral sulcus 1,2.
Function
A Japanese fMRI found that the left posterior inferior temporal gyrus played a role in the writing of Kanji (logogram) and, by extension, other non-alphabetical languages 3.
Related pathology
Lesions of the posterior inferior temporal gyrus result in agraphia of logographic writing systems, e.g. Kanji, Chinese characters 3.
Image 1 Illustration (Inferior temporal gyrus) ( create )
Image 2 Illustration (Temporal lobe) ( create )
Image 3 Illustration (Inferior temporal gyrus) ( create )
Image 4 Illustration (Inferior temporal gyrus) ( create )
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