催产素(oxytocin)是由下丘脑合成经神经垂体释放入血的一种神经激素.一般认为,催产素只在分娩和哺乳时才发挥其生理作用,对于妊娠子宫,催产素具有强烈刺激子宫肌收缩的作用;此外,催产素还可以使乳腺肌上皮细胞收缩,从而具有促进乳腺排乳的作用.近年,人们不仅对催产素生理学的研究日益深入,而且还发现性腺本身似能合成催产素,后者在卵巢功能的调节中可 Oxytocin is a neurohormonal produced by the hypothalamus that is released into the blood via the neurohypophysis. It is generally believed that oxytocin exerts its physiological effects only during childbirth and breastfeeding, and oxytocin strongly stimulates uterine muscle in pregnant uterus In addition, oxytocin can also make the contraction of the muscle myoepithelial cells, which has the effect of promoting breast milk discharge.In recent years, people not only on the physiology of oxytocin increasingly in-depth study, but also found that the gonads itself can synthesize oxytocin, The latter can regulate ovarian function