Question

Foetal ejection reflex in human female is induced by

• A. Release of oxytocin from pituitary
• B. Pressure exerted by amniotic fluid
• C. Differentiation of mammary glands
• D. Fully developed foetus and placenta

Answer 1

The correct option is D Fully developed foetus and placenta

Parturition is an induced Complex neuroendocrine mechanism. In this signals are originated from a fully developed fetus and placenta. This lead to mild uterine contractions and hence fetal ejection reflex. Then oxytocin acts on uterine muscles leading to strong uterine contractions. This further continues to stronger and stronger contractions. As a result, the baby is expelled out of the uterus with placenta through the birth canal.

So, the correct answer is 'fully developed fetus and placenta'