The term parietal lobe (PLB) refers to one of six divisions of the cerebral cortex (CTX) identified by dissection in the human ( Ono-1990 ) and the macaque ( Martin-2000 ). It is located between the frontal lobe, from which, it is separated by the central sulcus (cns), and the occipital lobe (OLB), from which it is separated by an approximately oblique plane through the parieto-occipital sulcus (pos) on the dorsomedial margin of the hemisphere and the preoccipital notch (pon) on the ventromedial margin. On the medial surface it is bounded by the cingulate gyrus (CGG) of the limbic lobe (LLB), from which it is separated by the cingulate sulcus (cgs). On the lateral surface it is bounded ventrally by the temporal lobe (TLB), from which it is separated partially by the terminal descending limb of the lateral fissure (ltftdl) with a horizontal extension to the occipital lobe boundary. The PLB is divided by the intraparietal sulcus (ips) into a superior parietal lobule (SPL) and an inferior parietal lobule (IPL) ( Caspers-2012 ). Equivalent structures are not found in the smooth cerebral cortex of the rat or mouse ( NeuroNames ). Updated 25 Aug 2024.