Question

Which hormone is known as ‘birth hormone’?

• A. Estrogen
• B. Progesterone
• C. Oxytocin
• D. Prolactin

Answer 1

The correct option is C Oxytocin

Oxytocin causes contraction of smooth muscles of mammary glands and uterus.

• The contraction of mammary glands causes release of milk and the hormone is, therefore, called as ‘Milk-let-down factor’.
• The contraction of smooth muscles of uterus during matured pregnancy causes expulsion of child (parturition). This hormone is therefore, also known as ‘birth hormone’.