GK
HUMAN BODY AND REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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luteotropic hormone (LTH)
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human placental lactogen
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both (a) and (b)
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oxytocin
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Detailed explanation-1: -As your pregnancy progresses, the glandular tissue necessary to produce milk replaces much of the fatty and supportive tissue that normally makes up most of the volume of your breast. This causes your breasts to become substantially larger during pregnancy and lactation.
Detailed explanation-2: -Prolactin. Prolactin is necessary for the secretion of milk by the cells of the alveoli. The level of prolactin in the blood increases markedly during pregnancy, and stimulates the growth and development of the mammary tissue, in preparation for the production of milk (19).
Detailed explanation-3: -The mammary gland is a highly evolved and specialized organ present in pairs, one on each side of the anterior chest wall. The organ’s primary function is to secrete milk. Though it is present in both sexes, it is well developed in females and rudimentary in males.