The foetal ejection reflex in humans triggers release of

Options

(a) Oxytocin from maternal pituitary
(b) Oxytocin from foetal pituitary
(c) Human Choronic Gonadotropin (hCG) from placenta
(d) Human Placental Lctogen (hPL) from placenta

Correct Answer:

Oxytocin from maternal pituitary

Explanation:

Parturition is induced by a complex neuroendocrine mechanism. The signals for parturition originate from the fully developed foetus and the placenta which induce mild uterine contractions called foetal ejection reflex. This triggers release of oxytocin from the maternal pituitary.