Gonadarche refers to the onset of pubertal function of the gonads, which leads to what outcome?

• A. Onset of adrenal androgen production
• B. Appearance of spermatozoa in semen
• C. Onset of breast development
• D. Production of hormones that underlie secondary sex characteristics

Answer: (D)

Gonadarche is the activation of the gonads, prompting the pituitary to release the gonadotropins that stimulate the gonads to produce sex steroids (estrogen and testosterone). These hormones are what drive the development of secondary sexual characteristics—such as breast development, body hair changes, voice changes, and shifts in body composition—that mark puberty. The immediate outcome is the production of hormones that underlie these secondary sex characteristics. Adrenarche (adrenal androgen production) occurs separately, spermarche (appearance of sperm) happens later as a downstream event, and a single feature like breast development is a manifestation caused by the hormones, not the direct result of gonad activation itself.