Which hormone stimulates the secretion of milk during sucking of milk by baby
Or
Which hormone is responsible for milk ejection after an birth of the baby

Options

A. Oxytocin
B. Relaxin
C. Prolactin
D. Progesterone

Answer

A

Explanation

Oxytocin causes release of milk into the mammary gland via the milk ejection reflex. Milk formed by the glandular cells of the breast is stored until the baby begins active sucking. Stimulation of touch receptors in the nipples imitate sensory nerve impulse that are relayed to the hypothalamus. The resulting compression moves the milk from the alveoli of the mammary glands into the mammary duct where it can be sucked. This process is termed milk ejection