What organ systems are involved in lactation?

Lactation primarily involves the mammary glands, which are part of the integumentary system. The endocrine system plays a crucial role through hormones such as prolactin and oxytocin, which regulate milk production and ejection. Additionally, the nervous system is involved in the reflex actions that trigger milk release in response to the infant's suckling. Overall, these systems work together to facilitate breastfeeding.