Anterior ramus of the lateral sulcus

Last revised by Frank Gaillard on 17 Jul 2016

The anterior ramus of the lateral sulcus, is located at the very anterior end of the lateral sulcus (sylvian fissure), just anterior to the ascending ramus, and passes superiorly into the inferior frontal gyrus separating the pars orbitalis form the pars triangularis of the frontal operculum. 


The anterior ramus is also sometimes referred to as the anterior horizontal ramus, so as not to confuse it with the ascending ramus which is sometimes known as the anterior ascending ramus. 

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Cases and figures

  • Figure 1
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