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  1. Human reproductive system | Definition, Diagram & Facts | Britannica

    Apr 4, 2026 · Human reproductive system, organ system by which humans reproduce and bear live offspring.

  2. Human reproductive system - Female Anatomy, Hormones, …

    Apr 4, 2026 · Human reproductive system - Female Anatomy, Hormones, Reproduction: The female gonads, or sexual glands, are the ovaries; they are the source of ova (eggs) and of the female sex …

  3. Human reproductive system - Male Anatomy, Hormones, Reproduction ...

    Apr 4, 2026 · Human reproductive system - Male Anatomy, Hormones, Reproduction: The male gonads are the testes; they are the source of spermatozoa and also of male sex hormones called androgens. …

  4. human reproductive system summary | Britannica

    Below is the article summary. For the full article, see human reproductive system. Organs of the human reproductive system. In a male, the scrotum, a pouch of skin, is divided into two sacs, each …

  5. Human reproductive system - Ovaries, Hormones, Reproduction

    Apr 4, 2026 · Human reproductive system - Ovaries, Hormones, Reproduction: The female gonads, or primary sex organs, corresponding to the testes in a male, are the two ovaries. Each is suspended …

  6. Hormone - Reproductive, Endocrine, Glands | Britannica

    Mar 12, 2026 · Hormone - Reproductive, Endocrine, Glands: The hormones of the reproductive system of vertebrates (sex hormones) are steroids that are secreted, like those of the adrenal cortex, by …

  7. Plant reproductive system | Definition, Types, Examples, & Facts ...

    Plant reproductive system, any of the systems, sexual or asexual, by which plants reproduce. Asexual reproduction results in offspring that are identical to the parent plant. Sexual reproduction involves …

  8. Human reproductive system - Ovaries, Testes, Hormones | Britannica

    Apr 4, 2026 · Human reproductive system - Ovaries, Testes, Hormones: These structures provide secretions to form the bulk of the seminal fluid of an ejaculate. The prostate gland is in the lesser or …

  9. Plant reproductive system - Mosses, Gametophytes, Sporophytes

    Plant reproductive system - Mosses, Gametophytes, Sporophytes: In mosses, as in liverworts and hornworts, the leafy shoots belong to the gametophytic phase and produce sex organs when they …

  10. Estrogen | Hormone Balance, Menopause & PMS | Britannica

    6 days ago · Estrogen, any of a group of hormones that primarily influence the female reproductive tract in its development, maturation, and function. There are three major hormones—estradiol, estrone, …