Fig. 24.Schematic of the hypothalamic PVN showing major subdivisions. (A) Anterior, (B) Mid, and (C) Caudal levels. AP = anterior parvocellular subdivision, DP = dorsal parvocellular subdivision, LT = lateral parvocellular subdivision, MN = magnocellular division, MP = medial parvocellular subdivision, P = periventricular parvocellular subdivision, VP = ventral parvocellular subdivision.