Medial frontal gyrus

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Brain: Medial frontal gyrus
Medial surface of left cerebral hemisphere.
Gray's	p.821

The superior frontal gyrus is situated above the superior frontal sulcus and is continued on to the medial surface of the hemisphere, the medial frontal gyrus. The portion on the lateral surface of the hemisphere is usually more or less completely subdivided into an upper and a lower part by an antero-posterior sulcus, the paramedial sulcus, which, however, is frequently interrupted by bridging gyri.

There is some evidence that it plays a role in executive mechanisms.^[1]

References

↑ Talati A, Hirsch J (July 2005). "Functional specialization within the medial frontal gyrus for perceptual go/no-go decisions based on "what," "when," and "where" related information: an fMRI study". J Cogn Neurosci 17 (7): 981–93. doi:10.1162/0898929054475226. PMID 16102231.

This article incorporates text from a public domain edition of Gray's Anatomy.

Human brain: forebrain (cerebrum, cerebral cortex, cerebral hemispheres, grey matter) (TA A14.1.09.002–240, 301–320, GA 9.818–826)

Frontal lobe

Superolateral

Prefrontal	Superior frontal gyrus 4l 6l 8l Middle frontal gyrus 9l 10l 46 Inferior frontal gyrus: 11l 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 4m 6m Medial frontal gyrus 8m 9m Paraterminal gyrus/Paraolfactory area 12 Straight gyrus 11m Orbital gyri/Orbitofrontal cortex 10m 11m 12 Ventromedial prefrontal cortex 10m Subcallosal area 25 Olfactory sulcus Orbital sulci

Precentral	Paracentral lobule 4 Paracentral sulcus

Both

Parietal lobe

Superolateral	Superior parietal lobule 5l 7l Inferior parietal lobule 40-Supramarginal gyrus 39-Angular gyrus Parietal operculum 43 Intraparietal sulcus

Medial/inferior	Paracentral lobule 1m 2m 3m 5m Precuneus 7m Marginal sulcus

Both	Postcentral gyrus/primary somatosensory cortex 1 2 3 Secondary somatosensory cortex 5 Posterior parietal cortex 7

Occipital lobe

Superolateral	Occipital pole of cerebrum Lateral occipital gyrus 18 19 Lunate sulcus Transverse occipital sulcus

Medial/inferior	Primary visual cortex 17 Cuneus Lingual gyrus Calcarine fissure

Temporal lobe

Superolateral	Transverse temporal gyrus/Primary auditory cortex 41 42 Superior temporal gyrus 38 22/Wernicke's area Middle temporal gyrus 21 Inferior temporal gyrus 20 Superior temporal sulcus Inferior temporal sulcus

Medial/inferior	Fusiform gyrus 37 Medial temporal lobe 27 28 34 35 36 Inferior temporal sulcus

Interlobar
sulci/fissures

Superolateral	Central (frontal+parietal) Lateral (frontal+parietal+temporal) Parieto-occipital Preoccipital notch

Medial/inferior	Medial longitudinal Cingulate (frontal+cingulate) Collateral (temporal+occipital) Callosal sulcus

Limbic lobe

Parahippocampal gyrus	anterior Entorhinal cortex Perirhinal 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	Supracallosal gyrus Uncus Amygdala

Insular lobe

General

Some categorizations are approximations, and some Brodmann areas span gyri.

M: CNS

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