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Signals for parturition originate from
A
Fully developed foetus only
B
Both placenta as well as fully developed foetus
C
Oxytocin released from maternal pituitary
D
Placenta only
Detailed Solution
The signals for parturition originate from the fully developed foetus and the placenta.
They induce mild uterine contractions called the foetal ejection reflex, which triggers release of oxytocin from the maternal pituitary.
Oxytocin is released in response to these signals; it is not their origin.
They induce mild uterine contractions called the foetal ejection reflex, which triggers release of oxytocin from the maternal pituitary.
Oxytocin is released in response to these signals; it is not their origin.