Which pituitary hormone helps to stimulate mammary gland growth and the secretion of milk?

Which pituitary hormone helps to stimulate mammary gland growth and the secretion of milk? Correct Answer Prolactin

Stimulating mammary development and the secretion of milk is the key purpose of PRL which is also known as Prolactin. It stimulates mRNA synthesis by acting on the plasma membrane of mammary gland cells via specific glycoprotein receptors. This eventually results in breast enlargement during pregnancy.
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