The sulci that are not visible on the upper outer surface of the cerebral hemispheres are the lateral parahippocampal sulcus and the parahippocampal sulcus. The elevated portion of the surface of the cerebral hemisphere is known as the cerebral gyrus and the depressed portion is known as the sulcus. The precentral gyrus, superior frontal gyrus, middle frontal gyrus, inferior frontal gyrus, posterior central gyrus, supramarginal gyrus, angular gyrus, superior temporal gyrus, inferior temporal gyrus, and transverse temporal gyrus are visible on the superior lateral surface of the cerebral hemisphere. Their corresponding sulcal fissures could be seen next to each gyrus, but the lateral paraspinal sulcus and parahippocampal sulcus were not visible. The sulci on the surface of the cerebral hemispheres have a very close relationship with the physiological functions of the human body. The precentral gyrus is the motor control area of the body, and damage to the precentral gyrus may result in the loss of the body’s motor functions, which may be manifested as hemiparesis or generalized paralysis. The posterior gyrus is the somatosensory area, which governs the sensation of the body.