Male Reproductive Organs




There are eight basic organs, or parts, to the male reproductive system:

  • Testes
    • Seminiferous tubules: produces sperm cells
    • Interstitial cells: produces and secretes male sex hormones, called androgens, the most abundant of which is testosterone.


labelled diagram of testes showing seminiferous tubules, vas deferens, epididymis

Diagram of Testes with Associated Organs


  • Epididymis: Stores sperm cells and matures them. Conveys sperm cells to the vas deferens.
  • Vas Deferens: Conveys sperm cells to the ejaculatory duct.
  • Seminal Vesicle: Secretes an alkaline fluid which contains nutrients and prostoglandins. This fluild helps neutralize acidic seminal fluid.
  • Prostate Gland: Secretes an alkaline fluid that helps to neutralize acidic seminal fluid and enhances the motility of sperm cells.


labelled diagram of male reproductive system with penis, prostate, urethra, vas deferens, testes, and scrotum

Male Reproductive System


  • Cowper's gland (Bulbourethral gland): Secretes a fluid that lubricates the end of the penis.
  • Scrotum: Skin sac that encloses and protects the testes.
  • Penis: Conveys seminal fluid containing sperm outside the body, into the vaginal canal.

This page created 02 Oct 2012 01:39
Last updated 18 Jul 2016 19:43

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