Straight gyrus

{{Short description|Brain region}}

{{Infobox brain

| Name = Straight gyrus

| Latin = gyrus rectus

| Image = Gray729 straight gyrus.png

| Caption = Orbital surface of left frontal lobe. Straight gyrus is shown in orange.

| Image2 = Human brainstem anterior view 2 description.JPG

| Caption2 = Human brainstem anterior view. Straight gyrus is numbered as #1

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The portion of the inferior frontal lobe immediately adjacent to the longitudinal fissure (and 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).{{cite web|url=http://neurosciencefundamentals.unsw.wikispaces.net/Sex+and+the+Brain.+What+parts+are+involved%3F |title= Neuroscience Fundamentals: Sex and the Brain}}{{deadlink|date=August 2024}}