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The portion of the frontal lobe medial to the medial orbital gyrus and olfactory tract is named the straight gyrus,(or gyrus rectus) and is continuous with the superior frontal gyrus on the medial surface. A specific function for the straight gyrus has not yet been brought to light; however, in males, greater activation of the straight gyrus within the medial orbitofrontal cortex while observing sexually visual pictures has been strongly linked to HSDD (hypoactive sexual desire disorder). ==Additional images== File:Straight gyrus animation small2.gif|Animation. Straight gyrus is depicted as red. File:Straight_gyrus_-_inferior_view.png|Basal surface of cerebrum. Straight gyrus is shown in red. File:Gray743 straight gyrus.png|Coronal section of human brain. Straight gyrus depicted as yellow in center bottom. File:Slide2STE.JPG|Cerebrum. Optic and olfactory nerves.Inferior view. Deep dissection. File:Slide2ZEB.JPG|Cerebrum. Inferior view.Deep dissection File:Sobo 1909 629.png|Gyrus rectus seen anteriorly at centre. File:Sobo 1909 630.png|Gyrus rectus seen anteriorly at centre. 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「straight gyrus」の詳細全文を読む スポンサード リンク
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