Q169 / 200 · NEET 2012 (Screening) · Zoology

Signals for parturition originate from

Correct answer
A
both placenta as well as fully developed foetus
B
oxytocin released from maternal pituitary
C
placenta only
D
fully developed foetus only

Solution

The signals for parturition originates from a fully developed foetus and placenta which induce mild uterine contraction. This triggers the release of oxytocin (birth hormone) from the maternal pituitary gland.

Hence, the correct answer is option: 'A'.

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