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Lactation

Milk gathers at the nipple and is released into the baby's mouth.

Prolactin and oxytocin travel to the mammary glands, where prolactin stimulates the production of milk in the glands and oxytocin stimulates the myoepithelial cells to push milk from the glands, down the ducts and toward the nipples.

Crying of the baby, as well as thoughts of your baby or even the crying of another baby, can stimulate the hypothalamus, which in turn stimulates the release of prolactin and oxytocin from the pituitary.

When the baby starts to suckle at the nipple, a physical stimulus is sent to the mother's brain, which causes more oxytocin and prolactin to be released.

Positive Feedback Loop

Stimulus : Suck, Cry

Recptor: Hypothalamus, Pituitary Glands

Effector: Mammary Glands, Myoepithelial Cells

Response: Lactation

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