Electron microscopic analysis of synaptic inputs from the median preoptic nucleus and adjacent regions to the supraoptic nucleus in the rat.


The median preoptic nucleus (MnPo) is critical for normal fluid balance, mediating osmotically evoked drinking and neurohypophysial hormone secretion. The influence of the MnPo on vasopressin and oxytocin release is in part through direct connections to the supraoptic and paraventricular nucleus. In the present investigation the synaptic contacts between… (More)