Biochemistry - Lipid - Discussion

Prolactin has a wide variety of effects. It stimulates the mammary glands to produce milk (lactation): increased serum concentrations of prolactin during pregnancy cause enlargement of the mammary glands and prepare for milk production, which normally starts when levels of progesterone fall by the end of pregnancy and a suckling stimulus is present.

Prolactin means?

There are touch receptors at the nipple of a woman's breast. These receptors transmit touch impulse to the brain, and the brain stimulates the pituitary gland to secrete oxytocin. This oxytocin also serves to stimulate the mammary glands to secrete breast milk.