Question

Foetal ejection reflex is produced by

• A. Fully developed foetus only
• B. Placenta only
• C. Fully developed foetus and placenta
• D. Fully developed foetus, placenta and endometrium

Answer 1

Answer: (C)

The process of delivery of the foetus (childbirth) is called parturition. 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 the release of oxytocin from the maternal pituitary.