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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== File:Middle frontal gyrus animation small.gif|Position of middle frontal gyrus (shown in red). File:Gray725 middle frontal gyrus.png|Left cerebral hemisphere seen from above. File:Gray726 middle frontal gyrus.png|Lateral surface of left cerebral hemisphere. File:Lateral surface - Middle frontal gyrus.png|Lateral surface of right cerebral hemisphere. Middle frontal gyrus is noted by red arrows. File:Slide2HAN.JPG|Cerebrum. Lateral view.Deep dissection. File:Slide3HAN.JPG|Cerebrum. Lateral view.Deep dissection. File:Slide4HAN.JPG|Cerebrum. Lateral view.Deep dissection. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「middle frontal gyrus」の詳細全文を読む スポンサード リンク
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