Puberty and Hormonal Regulation Quiz

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Questions and Answers

What is the primary hormone responsible for initiating puberty?

Testosterone
Follicle stimulating hormone (FSH)
Gonadotropin releasing hormone (GnRH) (correct)
Luteinizing hormone (LH)

Which of the following is the primary function of LH during puberty?

Stimulate Sertoli cells to support spermatogenesis
Promote the development of ovarian follicles
Stimulate Leydig cells to produce testosterone (correct)
Regulate the release of FSH from the pituitary

How do the increased levels of androgens, such as testosterone, contribute to the changes of puberty?

They have no direct effect on the physical changes of puberty
They promote the growth and maturation of the male reproductive organs (correct)
They stimulate the development of female secondary sexual characteristics
They inhibit the secretion of GnRH from the hypothalamus

What is the primary role of FSH during puberty?

<p>Stimulate the Sertoli cells to support spermatogenesis (B)</p> Signup and view all the answers

What is the primary function of the Sertoli cells during puberty?

<p>Support the process of spermatogenesis (A)</p> Signup and view all the answers

Study Notes

Puberty and Hormonal Regulation

Puberty is triggered by a significant increase in the secretion of Gonadotropin Releasing Hormone (GnRH), a hypothalamic hormone.
Increased GnRH levels stimulate the anterior pituitary gland, leading to the secretion of two gonadotropins: Luteinising Hormone (LH) and Follicle Stimulating Hormone (FSH).
LH acts on Leydig cells, stimulating the synthesis and secretion of androgens, which in turn stimulate spermatogenesis.
FSH acts on Sertoli cells, stimulating the process of spermatogenesis.

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Description

Test your knowledge on the hormonal changes during puberty, focusing on the secretion of gonadotropin releasing hormone (GnRH) and its effects on luteinising hormone (LH) and follicle stimulating hormone (FSH). Understand how these hormones influence the synthesis of androgens and spermatogenesis.