Posterior Pituitary
The posterior pituitary gland is functionally connected to the hypothalamus by the median eminence via a small tube called the pituitary stalk,
The magnocellular neurosecretory cells in the hypothalamus project axons down the infundibulum (pituitary stalk) to terminals in the posterior pituitary.
When stimulated, the neurons release their products into the bloodstream, just like a neuron would release its neurotransmitters into a synapse
The posterior pituitary releases antidiuretic hormone (ADH) and oxytocin.