Question

The signals for parturition originates from the fully developed foetus and followed by placenta causing the mild contractions called:

• A. Foetal ejection reflex
• B. Embryo ejection reflex
• C. Blastocoel ejaculation reflex
• D. Still birth

Answer 1

The correct option is A Foetal ejection reflex

Parturition is an induced complex neuroendocrine mechanism. In this, signals originate from a fully developed foetus and placenta. This leads to mild uterine contractions called foetal ejection reflex. Then, oxytocin is released from maternal pituitary and it acts on uterine muscles leading to strong uterine contractions. This further continues to stronger and stronger contractions leading to child birth.