Precentral sulcus

Part of the human brain

Precentral sulcus
Precentral sulcus of the human brain.
Lateral surface of left cerebral hemisphere, viewed from above.
Details
Identifiers
Latin	sulcus praecentralis
TA98	A14.1.09.120
TA2	5457
FMA	83800
Anatomical terms of neuroanatomy [edit on Wikidata]

The precentral sulcus is a part of the human brain that lies parallel to, and in front of, the central sulcus.^[1]^[2] 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.

Additional images

Position of precentral sulcus (shown in red).
Lateral surface of right frontal lobe. Precentral sulcus is labeled by * and **.
Human brain dissection video (29 sec). Demonstrating location of the precentral sulcus.

References

^ Rosano, Caterina; Sweeney, John A; Melchitzky, Darlene S; Lewis, David A (2003-05-16). "The human precentral sulcus: chemoarchitecture of a region corresponding to the frontal eye fields". Brain Research. 972 (1): 16–30. doi:10.1016/S0006-8993(03)02431-4. ISSN 0006-8993.
^ Schmitt, O.; Modersitzki, J.; Heldmann, S.; Wirtz, S.; Hömke, L.; Heide, W.; Kömpf, D.; Wree, A. (2005-12-01). "Three-dimensional cytoarchitectonic analysis of the posterior bank of the human precentral sulcus". Anatomy and Embryology. 210 (5): 387–400. doi:10.1007/s00429-005-0030-8. ISSN 1432-0568.

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Anatomy of the cerebral cortex of the human brain

Frontal lobe

Superolateral

Prefrontal	Superior frontal gyrus 4 6 8 Middle frontal gyrus 9 10 46 Inferior frontal gyrus: 11 47-Pars orbitalis Broca's area 44-Pars opercularis 45-Pars triangularis Superior frontal sulcus Inferior frontal sulcus
Precentral	Precentral gyrus Precentral sulcus

Medial/inferior

Prefrontal	Superior frontal gyrus 4 6 Medial frontal gyrus 8 9 Paraterminal gyrus/Paraolfactory area 12 Straight gyrus 11 Orbital gyri/Orbitofrontal cortex 10 11 12 Ventromedial prefrontal cortex 10 Subcallosal area 25 Olfactory sulcus Orbital sulcus
Precentral	Paracentral lobule 4 Paracentral sulcus

Both

Parietal lobe

Superolateral	Superior parietal lobule 5 7 Inferior parietal lobule 40-Supramarginal gyrus 39-Angular gyrus Parietal operculum 43 Intraparietal sulcus
Medial/inferior	Paracentral lobule 1 2 3 5 Precuneus 7 Marginal sulcus
Both	Postcentral gyrus/Primary somatosensory cortex 3, 1 and 2 Secondary somatosensory cortex 5 Posterior parietal cortex 7

Occipital lobe

Superolateral	Occipital pole of cerebrum Occipital gyri Lateral occipital gyrus 18 19 Lunate sulcus Transverse occipital sulcus
Medial/inferior	Visual cortex 17 Cuneus Lingual gyrus Calcarine sulcus

Temporal lobe

Superolateral	Transverse temporal gyrus/Auditory cortex 41 and 42 Superior temporal gyrus 38 22/Wernicke's area (Planum temporale) Superior temporal sulcus Middle temporal gyrus 21
Medial/inferior	Occipitotemporal sulcus Fusiform gyrus 37 Medial temporal lobe 27 28 34 35 36 Inferior temporal sulcus Inferior temporal gyrus 20

Interlobar
sulci/fissures

Superolateral	Central (frontal+parietal) Lateral (frontal+parietal+temporal) Parieto-occipital Preoccipital notch
Medial/inferior	Longitudinal fissure Cingulate (frontal+cingulate) Collateral (temporal+occipital) Callosal sulcus

Limbic lobe

Parahippocampal gyrus	anterior Entorhinal cortex Perirhinal cortex Postrhinal cortex Posterior parahippocampal gyrus Prepyriform area
Cingulate cortex/gyrus	Subgenual area 25 Anterior cingulate 24 32 33 Posterior cingulate 23 31 Isthmus of cingulate gyrus: Retrosplenial cortex 26 29 30
Hippocampal formation	Hippocampal sulcus Fimbria of hippocampus Dentate gyrus Rhinal sulcus
Other	Indusium griseum Uncus Amygdala