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The middle frontal gyrus makes up about one-third of the frontal lobe of the human brain . (A gyrus is one of the prominent "bumps" or "ridges" on the surface of the human brain.)
The middle frontal gyrus, like the inferior frontal gyrus and the superior frontal gyrus , is more of a region than a true gyrus.
The borders of the middle frontal gyrus are the inferior frontal sulcus below; the superior frontal sulcus above; and the precentral sulcus behind.
Additional images Middle frontal gyrus(red).
Lateral surface of left cerebral hemisphere, viewed from above. Middle frontal gyrus is shown in orange.
Drawing to illustrate the relations of the brain to the skull.
Lateral view of a human brain, main gyri labeled.
Human brain - left and right hemispheres - superior-lateral view
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Telencephalon cerebral cortex , cerebral hemispheres ) - edit
primary sulci/fissures :medial longitudinal , lateral , central , parietoöccipital , calcarine , cingulate
frontal lobe :precentral gyrus (primary motor cortex , 4 ), precentral sulcus , superior frontal gyrus (6 , 8 ), middle frontal gyrus (46 ), inferior frontal gyrus (Broca's area , 44 -pars opercularis , 45 -pars triangularis ), prefrontal cortex (orbitofrontal cortex , 9 , 10 , 11 , 12 , 47 )
parietal lobe :postcentral sulcus , postcentral gyrus (1, 2, 3, 43 ), superior parietal lobule (5 ), inferior parietal lobule (39 -angular gyrus , 40 ), precuneus (7 ), intraparietal sulcus
occipital lobe :primary visual cortex (17), cuneus , lingual gyrus , 18 , 19 (18 and 19 span whole lobe)
temporal lobe :transverse temporal gyrus (41-42-primary auditory cortex ), superior temporal gyrus (38 , 22 -Wernicke's area ), middle temporal gyrus (21 ), inferior temporal gyrus (20 ), fusiform gyrus (36 , 37 )
limbic lobe /fornicate gyrus :cingulate cortex /cingulate gyrus , anterior cingulate (24 , 32 , 33 ), posterior cingulate (23 , 31 ), isthmus (26 , 29 , 30 ), parahippocampal gyrus (piriform cortex , 25 , 27 , 35 ), entorhinal cortex (28 , 34 )
subcortical/insular cortex rhinencephalon , olfactory bulb , corpus callosum , lateral ventricles , septum pellucidum , ependyma , internal capsule , corona radiata , external capsule
hippocampal formation :dentate gyrus , hippocampus , subiculum
basal ganglia : striatum (caudate nucleus , putamen ), lentiform nucleus (putamen , globus pallidus ), claustrum , extreme capsule , amygdala , nucleus accumbens
Some categorizations are approximations, and some Brodmann areas span gyri.
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Tuberoinfundibular pathway
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