At the end of childhood dormancy, which hormonal change starts puberty?

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Multiple Choice

At the end of childhood dormancy, which hormonal change starts puberty?

Explanation:
Puberty begins when the brain activates the reproductive axis. The key trigger is pulsatile release of gonadotropin-releasing hormone from the hypothalamus, which prompts the anterior pituitary to secrete LH and FSH. These gonadotropins then stimulate the gonads to produce sex steroids (estrogen or testosterone), driving the visible pubertal changes. The adrenal glands producing androgens is called adrenarche and occurs earlier, contributing to pubic hair and other signs, but it isn’t the initiating event for puberty itself. Growth hormone affects overall growth but does not start the puberty process.

Puberty begins when the brain activates the reproductive axis. The key trigger is pulsatile release of gonadotropin-releasing hormone from the hypothalamus, which prompts the anterior pituitary to secrete LH and FSH. These gonadotropins then stimulate the gonads to produce sex steroids (estrogen or testosterone), driving the visible pubertal changes.

The adrenal glands producing androgens is called adrenarche and occurs earlier, contributing to pubic hair and other signs, but it isn’t the initiating event for puberty itself. Growth hormone affects overall growth but does not start the puberty process.

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