The key event that starts sexual maturation at the onset of puberty is that
A) the ovaries and testes release gonadotropic hormones.
B) estradiol and testosterone are released from the hypothalamus.
C) the pituitary secretes gonadotropin-releasing hormones.
D) LH and FSH are released from the hypothalamus.
E) the adrenals release adrenaline.

Question

Quizplus · Accepted Answer

The key event that starts sexual maturation at the onset of puberty is when the pituitary gland secretes gonadotropin-releasing hormones. This triggers the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland, which then stimulate the ovaries or testes to produce estrogen or testosterone, respectively. This hormonal cascade ultimately leads to the development of secondary sexual characteristics and the ability to reproduce.

The Key Event That Starts Sexual Maturation at the Onset