Oxytocin causes contraction of myoepithelial cells surrounding mammary alveoli and ducts, producing the milk-ejection or let-down reflex. Prolactin primarily stimulates milk production, whereas oxytocin is responsible for expelling stored milk during suckling.
Which harmone causes ejection of milk from a lactating mammary gland?
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Question context
This question is part of 🧬 Biochemistry within the broader 🧬 Medical Science subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.