Which of the following statements are not correct?
(A) The milk produced during the initial few days of lactation is called colostrum which contain several antibodies
(B) The signals for the parturition originate from the pituitary gland of the mother
(C) Parturition is induced by a complex neuroendocrine mechanism
(D) Oxytocin is released from the ovary of mother and acts on the uterine muscles
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (B) and (D) only
(A) The milk produced during the initial few days of lactation is called colostrum which contain several antibodies — A correct statement.
(B) The signals for the parturition originate from the pituitary gland of the mother — Not correct. The signals come from the fully developed foetus and the placenta.
(C) Parturition is induced by a complex neuroendocrine mechanism — A correct statement.
(D) Oxytocin is released from the ovary of mother and acts on the uterine muscles — Not correct. Oxytocin is released from the maternal pituitary.
NCERT Extract:
Parturition and Lactation – “… 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 release of oxytocin from the maternal pituitary. Oxytocin acts on the uterine muscle and causes stronger uterine contractions, which in turn stimulates further secretion of oxytocin.”
Parturition and Lactation – “… The milk produced during the initial few days of lactation is called colostrum which contains several antibodies absolutely essential to develop resistance for the new-born babies”