The arginine-vasopressin (AVP)-containing hypothalamic magnocellular neurosecretory neurons (VPMNNs) are known for their role in hydro-electrolytic balance control via their projections to neurohypophysis. Recently. projections from these same neurons to hippocampus. habenula. https://www.roneverhart.com/Kakkurengas-saadettava-rst-19x28-34x54-cm/