12 Questions
Which hormone activates the reproductive glands during puberty?
FSH
What is the first phase of pubertal changes that occurs in individuals?
Adrenarche
What is the phase of pubertal changes that involves the onset of breast development?
Thelarche
What causes the menstrual cycle to be irregular in adolescents in the initial period after menarche?
Short luteal phase
Which phase of pubertal changes marks the onset of menstrual bleeding in females?
Menarche
Which cells in the testicles and ovaries are stimulated by FSH and LH during puberty?
Leydig cells and Sertoli cells (testicles), Theca and Granulosa cells (ovary)
What is the role of inhibin secreted by FSH-stimulated Sertoli cells?
Inhibits FSH secretion
Which hormone inhibits further GnRH secretion from the hypothalamus?
Testosterone
What is the first visible sign of puberty in females?
Thelarche
What is the genetic cause of McCune-Albright syndrome?
Mosaic mutation in the GNAS1 gene
Which of the following is NOT one of the 3 P's of McCune-Albright syndrome?
Progeria
What defines precocious puberty?
Appearance of secondary sexual characteristics before age 9 in girls and age 8 in boys
Learn about the normal phases of puberty development from childhood to adulthood, including adrenarche and gonadarche. Understand the activation of adrenal androgen production, reproductive glands, and other physical changes.
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