Editing Lateral sulcus (section)

==Anatomy==
The lateral sulcus divides both the [[frontal lobe]] and [[parietal lobe]] above from the [[temporal lobe]] below. It is in both [[Cerebral hemisphere|hemispheres of the brain]]. The lateral [[Sulcus (neuroanatomy)|sulcus]] is one of the earliest-developing sulci of the human brain, appearing around the fourteenth week of [[gestational age]].<ref>{{Cite journal
|author1=Jee G. Chi |author2=Elizabeth C. Dooling |author3=Floyd H. Gilles | date    = January 1977
| title   = Gyral development of the human brain
| journal = [[Annals of Neurology]]
| volume  = 1
| issue   = 1
| pages   = 86–93
| doi  = 10.1002/ana.410010109
| url  = http://www3.interscience.wiley.com/cgi-bin/abstract/109672031/ABSTRACT
| archive-url = https://archive.today/20121216135508/http://www3.interscience.wiley.com/cgi-bin/abstract/109672031/ABSTRACT
| url-status = dead
| archive-date = 2012-12-16
| pmid = 560818
| url-access= subscription
}}</ref>

The [[insular cortex]] lies deep within the lateral sulcus.<ref name="Carpenter">{{cite book |last1=Carpenter |first1=Malcolm |title=Core text of neuroanatomy |year=1985 |publisher=Williams & Wilkins |isbn=0683014552 |page=22 |edition=3rd}}</ref>

The lateral sulcus has a number of side branches. Two of the most prominent and most regularly found are the ascending (also called vertical) ramus and the horizontal ramus of the lateral fissure, which subdivide the [[inferior frontal gyrus]]. The lateral sulcus also contains the [[transverse temporal gyri]], which are part of the primary and below the surface [[auditory cortex]].

Due to a phenomenon called the [[Yakovlevian torque]], the lateral sulcus is often longer and less curved on the left hemisphere than on the right.

It is also located near the [[Sylvian point]].

The area lying around the Sylvian fissure is often referred to as the '''perisylvian cortex'''<!--Per MOS:BOLD due to redirect-->.<ref>Courten Norbury: ''Understanding Developmental Language Disorders: From Theory to Practice'' 2008, p. 63</ref>

The human [[secondary somatosensory cortex]] (S2, SII) is a functionally-defined region of cortex in the parietal operculum on the ceiling of the lateral sulcus.