Puberty is triggered when brain maturation causes the hypothalamus to secrete:

Question

Quizplus · Accepted Answer

Puberty is triggered when brain maturation causes the hypothalamus to secrete gonadotropin-releasing hormone (GnRH), which in turn stimulates the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary gland. These hormones then stimulate the gonads (ovaries in females and testes in males) to produce sex hormones such as estrogen and testosterone, which result in the physical changes of puberty. HCG and progesterone are not involved in the initial trigger of puberty.

Puberty Is Triggered When Brain Maturation Causes the Hypothalamus to Secrete