Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. [2024]
Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below.
Both A and R are correct and R is the correct explanation of A.
Both A and R are correct but R is NOT the correct explanation of A.
A is correct but R is not correct.
A is not correct but R is correct.
(1)
Breast-feeding during the initial period of infant growth is recommended by doctors for bringing up a healthy baby. The milk produced during the initial few days of lactation is called colostrum which contains several antibodies absolutely essential to develop resistance against many diseases for the new-born babies.
Which of these is not an important component of initiation of parturition in humans? [2021]
Release of prolactin
Increase in estrogen and progesterone ratio
Synthesis of prostaglandins
Release of oxytocin
(1)
Prolactin is secreted by anterior lobe of the pituitary gland during lactation.
Which of these is not an important component of initiation of parturition in humans? [2015]
Release of oxytocin
Release of prolactin
Increase in estrogen and progesterone ratio
Synthesis of prostaglandins
(2)
Process of parturition is induced by both nervous system and hormones secreted by the endocrine glands of the mother. The signals for child birth (parturition) originate from the fully developed fetus and placenta which induce mild uterine contractions called fetal ejection reflex. This causes quick release of oxytocin from the maternal posterior lobe of pituitary gland which induces labour pains. Prostaglandins, progesterone and estrogen also play a role. Prolactin is the hormone which induces lactation and has no role in parturition.
