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  2. Seminiferous tubule - Wikipedia

    en.wikipedia.org/wiki/Seminiferous_tubule

    Sertoli cells function to nourish the developing sperm cells. They secrete androgen-binding protein, a binding protein which increases the concentration of testosterone. There are two types: convoluted and straight, convoluted toward the lateral side, and straight as the tubule comes medially to form ducts that will exit the testis.

  3. Leydig cell - Wikipedia

    en.wikipedia.org/wiki/Leydig_cell

    Leydig cells release a class of hormones called androgens (19-carbon steroids). [8] They secrete testosterone, androstenedione and dehydroepiandrosterone (DHEA), when stimulated by the luteinizing hormone (LH), which is released from the anterior pituitary in response to gonadotropin releasing hormone which in turn is released by the hypothalamus.

  4. Androgen - Wikipedia

    en.wikipedia.org/wiki/Androgen

    An androgen (from Greek andr-, the stem of the word meaning ' man ') is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. [1] [2] This includes the embryological development of the primary male sex organs, and the development of male ...

  5. How Testosterone Affects the Size of Your Penis - AOL

    www.aol.com/testosterone-affects-size-penis...

    Testosterone, which is produced by your testicles, “plays a key role in the development of characteristics like libido, and growth of the penis and testicles,” says Jamin Brahmbhatt, MD, a ...

  6. Testicle - Wikipedia

    en.wikipedia.org/wiki/Testicle

    A testicle or testis (pl. testes) is the gonad in all male bilaterians, including humans, and is homologous to the ovary in females. Its primary functions are the production of sperm and the secretion of androgens, primarily testosterone. The release of testosterone is regulated by luteinizing hormone (LH) from the anterior pituitary gland.

  7. Lobules of testis - Wikipedia

    en.wikipedia.org/wiki/Lobules_of_testis

    They differ in size according to their position, those in the middle of the gland being larger and longer. The lobules are conical in shape, the base being directed toward the circumference of the organ, the apex toward the mediastinum testis.

  8. Gonad - Wikipedia

    en.wikipedia.org/wiki/Gonad

    A gonad, sex gland, or reproductive gland [1] is a mixed gland and sex organ that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. [2] The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells.

  9. AOL

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.