What is the anatomy of the testes?

Updated: Aug 31, 2018
  • Author: Oreoluwa I Ogunyemi, MD; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

The testes are paired ovoid structures that are housed in the scrotum and positioned so that the long axis is vertical. The testicle is covered by the tunica vaginalis. Beneath the tunica vaginalis is the capsule of the testis, termed the tunica albuginea. See Male Reproductive Organ Anatomy.

The anterolateral two thirds of the organ is free of any scrotal attachment. There is a potential space here, between the tunica vaginalis and the tunica albuginea, where fluid from a variety of sources may accumulate. The tunica vaginalis attaches to the posterolateral surface of the testicle and allows for little mobility of the testicle within the scrotum.

The epididymis, connective tissue, and vasculature cover the posterolateral aspect of the organ.

The contents of the spermatic cord include the following:

  • Ductus deferens and associated vasculature and nerves

  • Testicular artery

  • Pampiniform plexus, which ultimately forms the testicular vein

  • Genital branch of the genitofemoral nerve


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