The portion of the inferior

frontal lobe The frontal lobe is the largest of the four major lobes of the brain in mammals, and is located at the front of each cerebral hemisphere (in front of the parietal lobe and the temporal lobe). It is parted from the parietal lobe by a groove be ...

immediately adjacent to the

longitudinal fissure The longitudinal fissure (or cerebral fissure, great longitudinal fissure, median longitudinal fissure, interhemispheric fissure) is the deep groove that separates the two cerebral hemispheres of the vertebrate brain. Lying within it is a continu ...

(and medial to the medial orbital gyrus and

olfactory tract The olfactory tract is a bilateral bundle of afferent nerve fibers from the mitral and tufted cells of the olfactory bulb that connects to several target regions in the brain, including the piriform cortex, amygdala, and entorhinal cortex. It ...

) 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.

References

External links

* * * http://www.gesundheit.de/roche/pics/s13048.000-3.html
NIF Search - Gyrus Rectus
via the

Neuroscience Information Framework The Neuroscience Information Framework is a repository of global neuroscience web resources, including experimental, clinical, and translational neuroscience databases, knowledge bases, atlases, and genetic/genomic resources and provides many auth ...

Gyri Medial surface of cerebral hemisphere {{neuroanatomy-stub