A: Lactational amenorrhoea is due to high lev | vedclass

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(C) Lactational amenorrhoea refers to the absence of menstruation during the period of intense lactation following parturition.This condition is cause

Vedclass · Accepted Answer

Assertion is correct,but Reason is incorrect.

Vedclass · Answer

(C) Lactational amenorrhoea refers to the absence of menstruation during the period of intense lactation following parturition.This condition is caused by high levels of prolactin,which is secreted in response to suckling.High levels of prolactin inhibit the release of gonadotropins ($LH$ and $FSH$) from the anterior pituitary gland.Since gonadotropins are essential for ovulation,their inhibition prevents the menstrual cycle.Therefore,the Assertion is correct,but the Reason is incorrect because prolactin inhibits,rather than stimulates,the release of gonadotropins.

$A$: Lactational amenorrhoea is due to high levels of prolactin.
$R$: Prolactin stimulates the release of gonadotropins.

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Assertion $A :$ Colostrum provides passive immunity to the infant.
Reason $R :$ Colostrum secreted by the mother contains antibodies that protect the infant.

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$A$: Lactational amenorrhoea is due to high levels of prolactin.$R$: Prolactin stimulates the release of gonadotropins.