spermatogenesis

(noun)

The process of sperm production within the seminiferous tubules in the testes.

Related Terms

Examples of spermatogenesis in the following topics:

  • Hormonal Regulation of the Male Reproductive System

    • Hormonal control of spermatogenesis varies among species.
    • However, it is known that initiation of spermatogenesis occurs at puberty due to the interaction of the hypothalamus, pituitary gland, and Leydig cells.
    • If the pituitary gland is removed, spermatogenesis can still be initiated by follicle-stimulating hormone (FSH) and testosterone.
    • The Sertoli cells themselves mediate parts of spermatogenesis through hormone production.
    • The sequestering of testosterone in the testes is initiated by FSH, and only testosterone is required to maintain spermatogenesis.

  • Spermatogenesis

    • Spermatogenesis is the process by which male primary sperm cells undergo meiosis and produce a number of cells calls spermatogonia, from which the primary spermatocytes are derived.
    • Spermatogenesis is the male version of gametogenesis and  results in the formation of spermatocytes possessing half the normal complement of genetic material.
    • Spermatogenesis, essential for sexual reproduction is highly dependent upon optimal conditions to occur correctly.
    • Instead, certain types of spermatogonia divide to produce copies of themselves, thereby ensuring a constant supply of gametogonia to fuel spermatogenesis.
    • Spermatogenesis is highly sensitive to fluctuations in the environment, particularly hormones and temperature.

  • Testes

    • Thee testes produce sperm (spermatogenesis) and androgens, primarily testosterone.
    • The presence of both testosterone and follicle-stimulating hormone (FSH) is needed to support spermatogenesis.
    • They also support libido, spermatogenesis, and erectile function.
    • The sertoli cells are the testes’ somatic cells, necessary for testis development and spermatogenesis.

  • Male and Female Gonads

    • The primary functions of the testes are to produce sperm (spermatogenesis) and androgens, primarily testosterone.
    • The presence of both testosterone and follicle-stimulating hormone is needed to support spermatogenesis.

  • Anatomy of the Male Reproductive System

    • Within these tubules, spermatogenesis takes place.