Editing Transverse temporal gyrus (section)

{{short description|Gyrus of the primary auditory cortex of the brain}}
{{For|the Animal Collective album|Transverse Temporal Gyrus}}
{{Infobox brain
| Name            = Transverse temporal gyrus
| Latin           = gyri temporales transversi
| Image           = Gray730.png
| Caption         = Section of [[brain]] showing upper surface of [[temporal lobe]] ("transverse temporal gyri" visible at center left)
| Image2          = Human brain view on transverse temporal and insular gyri description.JPG
| Caption2        = Human brain view on transverse temporal and insular gyri (gyri temporales transversi are #4)
| IsPartOf        = [[Temporal lobe]]
| Components      = [[Primary auditory cortex]]
| Artery          = [[Middle cerebral artery|Middle cerebral]]
| Vein            =
}}
The '''transverse temporal gyrus''', also called '''Heschl's gyrus''' ({{IPAc-en|ˈ|h|ɛ|ʃ|əl|z|_|ˈ|dʒ|aɪ|r|ə|s}}) or '''Heschl's convolutions''', is a [[gyrus]] found in the area of each [[primary auditory cortex]] buried within the [[lateral sulcus]] of the [[human brain]], occupying [[Brodmann areas 41 and 42]]. Transverse temporal gyri are superior to and separated from the [[planum temporale]] (cortex involved in language production) by Heschl's sulcus. Transverse temporal gyri are found in varying numbers in both the right and left hemispheres of the brain and one study found that this number is not related to the hemisphere or dominance of hemisphere studied in subjects.{{Citation needed|date=April 2024|reason=Which study?}} Transverse temporal gyri can be viewed in the sagittal plane as either an omega shape (if one gyrus is present) or a heart shape (if two gyri and a sulcus are present).<ref name=":0">{{cite journal | vauthors = Yousry TA, Fesl G, Buttner A, Noachtar S, Schmid UD | title = Heschl's gyrus-Anatomic description and methods of identification on magnetic resonance imaging. | journal = Int J Neuroradiol | date = 1997 | volume = 3 | issue = 1 | pages = 2–12 | url = http://cds.ismrm.org/ismrm-1998/PDF5/p1377.pdf }}</ref>

Transverse temporal gyri are the first [[cerebral cortex|cortical]] structures to process incoming auditory information. Anatomically, the transverse temporal gyri are distinct in that they run mediolaterally (toward the center of the brain), rather than front to back as all other [[temporal lobe]] gyri run.

The ''Heschl's gyri'' are named after [[Richard L. Heschl]].