<prompt> The function of the preoptic nucleus of the hypothalamusTemperature regulationThirstGI stimulationSatiety centre  <response>: Functions of Hypothalamus- Thermoregulation- Preoptic regionAnterior hypothalamus- Heat responsePosterior hypothalamus- Cold response- Satiety centre- ventromedial nucleus- Feeding centre- Lateral nucleus- Circadian rhythm- Suprachiasmatic nucleus- Sleep- Sex drive- Anterior hypothalamus, Posterior hypothalamus.- Hypophysis regulation 