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Chapter 3: Problem 84

Androgens stimulate (a) Spermiation (b) Insemination (c) Spermatogenesis (d) Oogenesis

Short Answer

Expert verified
The answer is (c) Spermatogenesis. Androgens stimulate the process of Spermatogenesis that involves the production of spermatozoa from male primordial germ cells.

Step by step solution

01

Understand the Options

Spermiation is the process where mature Spermatocytes are released into the seminiferous tubules. Insemination is the introduction of sperm into a female's body, specifically into her reproductive tract, to achieve pregnancy. Spermatogenesis is the process by which spermatozoa are produced from male primordial germ cells in the testicles. Oogenesis is the creation of an ovum (egg cell). It is the female form of gametogenesis.
02

Link Process to Androgens

Androgens play a significant role in male reproductive functions, one crucial function is to stimulate the process of creation of spermatozoa - spermatogenesis.
03

Eliminate Irrelevant Options

Oogenesis is related to female reproductive function, thus, this option can be eliminated. Insemination is a process that does not have a direct relation to the function of androgens and can be eliminated. Between spermiation and spermatogenesis, androgens have a more direct role in stimulating spermatogenesis.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Spermatogenesis
Spermatogenesis is a vital process in the male reproductive system where spermatozoa, or sperm cells, are produced. It begins at puberty and continues throughout a man's life, occurring within the seminiferous tubules of the testes. This complicated process takes about 64 days and includes several stages:
  • The mitotic division of spermatogonia, which are the sperm stem cells.
  • Meiosis, where genetic material is halved and diversity is increased in subsequent sperm cells.
  • Spermiogenesis, the final stage where spermatids mature into motile spermatozoa.

Androgens, particularly testosterone, play a crucial role in regulating spermatogenesis. They stimulate spermatogonial differentiation, support the meiotic process, and enhance the transformation of spermatids into spermatozoa. Without adequate levels of androgens, the efficiency of these processes and the overall sperm quality can be negatively impacted.
Male Reproductive System
The male reproductive system is designed to produce, maintain, and transport sperm and protective fluid (semen) alongside contributing to the generation of sex hormones. The main components include the testes, epididymis, vas deferens, ejaculatory ducts, urethra, and penis.
  • The testes are responsible for producing sperm and testosterone.
  • The epididymis is where sperm matures and is stored.
  • The vas deferens transports mature sperm to the ejaculatory ducts.
  • The urethra serves as a conduit for semen to be expelled during ejaculation.

Androgens are integral to the function of the male reproductive system. In addition to spermatogenesis, they contribute to the development of male secondary sexual characteristics, maintain libido, and ensure the function of the accessory glands (prostate, seminal vesicles) that produce the bulk of the semen.
Gametogenesis
Gametogenesis is the process by which gametes, or sex cells, are produced in the body. In males, this process is called spermatogenesis and in females, it's known as oogenesis. These processes are fundamentally different, not only in the type of gamete produced but also in their timelines and regulation.
  • Spermatogenesis results in the production of four viable sperm cells from each precursor cell.
  • Oogenesis results in one primary oocyte developing into a single mature ovum, with the remaining cells becoming polar bodies that are eventually degraded.

Androgens are the main hormones involved in regulating male gametogenesis but play no direct role in female gametogenesis. In males, these hormones stimulate the production of sperm and ensure the proper formation of the seminiferous tubules, where spermatogenesis takes place.

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Most popular questions from this chapter

Second meiotic division in secondary oocyte is (a) Unequal (b) Complete after sperm penetration (c) Both (a) and (b) (d) Equal

In human embryonic development, which layer develops between the ectoderm and endoderm? (a) Mesothelium (b) Mesoderm (c) Myoderm (d) Myometrium

The time required to convert primary follicle into mature follicle is (a) 4 days (b) 9 to 11 days (c) 18 to 20 days (d) 2 days

During parturition, the mild uterine contractions which lead to expulsion of the foetus is known as (a) Foetal ejection release (b) Foetal ejection reflex (c) Foetal uterine reflex (d) Foetal placental reflex

Spermatogonia is (a) Immature male germ cells (b) Mature male germ cells (c) Immature male gamete (d) Mature male gamete
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