Oxytocin.
Labor is triggered by the hormone called oxytocin and prostaglandin. release of milk is triggered by the hormone prolactin.
oxytocin
The medical term for a hormone that stimulates contraction of the uterus during labor is oxytocin.
Estrogen
Prolactin
Estrogen
Oxytocin
Pitocin is a hormone, which is used in the labor to augment or speed up the labor process.
Pitocin, a manmade version of oxytocin, the hormone your body makes naturally to go into labor.
The hormone levels are one factor. Estrogen increases contractility of the uterus while progesterone inhibits it. Throughout pregnancy, progesterone levels are high, but just before labor, they fall relative to estrogen levels and contractions start. Another hormone called oxytocin also induces labor. The number of oxytocin receptors increases as pregnancy progresses, and hormone levels rise at labor causing the uterus to contract and begin labor. The uterus also has stretch receptors and will not start contracting unless stretched to a certain degree.
oxytocin and prostaglandin (oxitocin sends positive feedback to prostaglandin)
Yes, oxytocin being the primary culprit.