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Central Sulcus
Precentral Sulcus
Superior Frontal Sulcus
Inferior Frontal Sulcus
Ascending Branch of Sylvian Fissure
Horizontal Branch of Sylvian Fissure
Lateral Orbital Sulcus
Frontomarginal Sulcus
Cingulate Sulcus
Paracentral Sulcus
Supraorbital Sulcus
Olfactory orbital sulcus
Sylvian Fissure Terminal Split
Sup. Temporal with Upper Branch
Inferior Temporal Sulcus
Occipito Temporal Sulcus
Collateral Sulcus
Transverse Temporal Sulcus
Circular Sulcus
Postcentral Sulcus
Intraparietal Sulcus
Occipito parietal Sulcus
Subparietal Sulcus
Calcarine Sulcus
Transverse Occipital Sulcus
Lateral Occipital Sulcus
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Ascending Branch of Sylvian Fissure

 

The Ascending Branch of the Sylvian Fissure (abSF) separates the pars opercularis from the pars triangularis, both sectors of the inferior frontal gyrus. It starts, as the name suggests, at the anterior end of the SF. It runs superiorly, parallel to the lower segment of the preCS, towards the IFS which it rarely reaches.

The first point of the curve should be dropped inferiorly (1) followed by the terminal superior point (2).