MCQ – 60278

Following pubertal change is not due to estrogen ‑

A.	Vaginal cornification
B.	Pubic & axillary hair growth
C.	Cervical mucus production
D.	Menstruation

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Correct Answer � B Explanation

Pubarche or development of axillary and pubic hair is due to testosterone (in both the sexes).

Puberty in females :

• Involves the beginning of menstrual cycles (menarche), breast development (thelarche), and an increase in adrenal androgen secretion (adrenarche).
• Estradiol induces the development of secondary sex characteristics, including the breasts and reproductive tract, and increased fat in the hips.
• Estrogens also regulate the growth spurt at puberty,vaginal cornification and cervical mucus production, induce closure of the epiphyses, have a positive effect in maintaining bone formation, and can antagonize the degrading actions of parathyroid hormone on bone.