Which of the following is a major hormonal event at the onset of puberty?
A) The hypothalamus decreases its production of GnRH.
B) Circulating levels of FSH decrease rapidly.
C) Ovarian cells become less sensitive to FSH.
D) Testicular cells become less sensitive to LH and FSH.
E) Pituitary gland cells become more sensitive to GnRH.

Question

Quizplus · Accepted Answer

At the onset of puberty, the hypothalamus actually increases its production of GnRH, which in turn causes the pituitary gland cells to become more sensitive to it. This results in an increase in the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which then stimulates the ovaries or testes to begin producing estrogen or testosterone, respectively. Therefore, choice E is the best answer, as it accurately reflects this hormonal event.

Which of the Following Is a Major Hormonal Event at the Onset