Question

The hormone that induces vigorous contractions of the uterus in a pregnant mother is ______.

Options

• Oestrogen

• Prolactin

• Oxytocin

• Progesterone

Answer 1

The hormone that induces vigorous contractions of the uterus in a pregnant mother is oxytocin.

Explanation:

Oxytocin is a hormone produced by the posterior pituitary gland. It causes strong uterine contractions during childbirth. Estrogen and progesterone support pregnancy, while prolactin encourages milk production after birth.