precentral sulcus

{{Short description|Part of the human brain}}

{{Infobox brain

| Name = Precentral sulcus

| Latin = sulcus praecentralis

| Image = precentral_sulcus.png

| Caption = Precentral sulcus of the human brain.

| Image2 = Gray725 precentral sulcus.png

| Caption2 = Lateral surface of left cerebral hemisphere, viewed from above.

| System =

| Artery =

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}}

The precentral sulcus is a part of the human brain that lies parallel to, and in front of, the central sulcus.{{Cite journal |last=Rosano |first=Caterina |last2=Sweeney |first2=John A |last3=Melchitzky |first3=Darlene S |last4=Lewis |first4=David A |date=2003-05-16 |title=The human precentral sulcus: chemoarchitecture of a region corresponding to the frontal eye fields |url=https://www.sciencedirect.com/science/article/pii/S0006899303024314 |journal=Brain Research |language=en |volume=972 |issue=1 |pages=16–30 |doi=10.1016/S0006-8993(03)02431-4 |issn=0006-8993|url-access=subscription }}{{Cite journal |last=Schmitt |first=O. |last2=Modersitzki |first2=J. |last3=Heldmann |first3=S. |last4=Wirtz |first4=S. |last5=Hömke |first5=L. |last6=Heide |first6=W. |last7=Kömpf |first7=D. |last8=Wree |first8=A. |date=2005-12-01 |title=Three-dimensional cytoarchitectonic analysis of the posterior bank of the human precentral sulcus |url=https://doi.org/10.1007/s00429-005-0030-8 |journal=Anatomy and Embryology |language=en |volume=210 |issue=5 |pages=387–400 |doi=10.1007/s00429-005-0030-8 |issn=1432-0568|url-access=subscription }} A sulcus is one of the prominent grooves on the surface of the human brain.

The precentral sulcus divides the inferior, middle and superior frontal gyri from the precentral gyrus. In most brains, the precentral sulcus is divided into two parts: the inferior precentral sulcus and the superior precentral sulcus. However, the precentral sulcus may sometimes be divided into three parts or form one continuous sulcus.