View of the lobes of the cerebrum with primary motor and sensory cortex exposed. The central sulcus separates the precentral and postcentral gyri, which contain the primary motor and sensory areas, respectively. The parietal lobe lies between the central sulcus and the parieto-occipital sulcus. A portion of the calcarine sulcus, containing the primary visual cortex, is visible here on the medial side of the occipital lobe. Similarly, in this dissection the superior and inferior temporal gyri have been preserved with resection of the middle temporal gyrus to reveal the temporal horn of the lateral ventricle and hippocampus. (Image courtesy of AL Rhoton, Jr.)