And when stimulation takes place, these hormones the oxytocin is released into this bed of capillaries into the network of capillaries and eventually exits through our veins known as our hypothesial vein. Now, by the way, this is the superior hypothesial artery. This is the inferior superior means on top of an inferior means on the bottom of. So these two arteries essentially bring the oxygenated blood as well as the nutrients to the hypothalamus portion as well as to this portion the posterior pituitary portion of our gland. Now, the question is when exactly do we release our oxytocin and what effect does the oxytocin hormone have on our body? Well, basically oxytocin is released during childbirth in the female human and this basically causes the contraction of smooth muscles in our uterus and that basically helps move our child out of the body.