Posterolateral View of the Right Hemisphere. A, Posterolateral view of the right hemisphere. The inferior branch of the transverse occipital sulcus has the same course as the intraoccipital sulcus and is a continuation of that sulcus toward the occipital pole. It reaches the lateral occipital sulcus next to the occipital pole. B, This specimen has the 3-gyrus pattern. The lateral aspect of the occipital lobe is divided into 3 main parts by the lateral occipital sulcus and the inferior branch of the transverse occipital sulcus. The superior occipital gyrus (green), the inferior occipital gyrus (yellow), and the middle occipital gyrus (blue) are highlighted. (Images courtesy of E de Oliveira)