Stephen J. Schueler, M.D.

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Torsion Testicle Anatomy

To better understand testicular torsion, it helps to understand the anatomy of the scrotum and testicles.

The scrotum is a sac of skin that contains two testicles, which produce sperm. Next to each testicle lie the epididymis, vas deferens, and spermatic cord. The scrotum also contains blood vessels and fat.

Each testicle receives its blood supply through the spermatic cord. A blocked spermatic cord cuts off the blood supply to the testicle.

The epididymis is a thin, folded, tube that is about 15 feet long. The epididymis receives sperm from the testicle in the scrotum. The sperm mature as they pass through the epididymis. The epididymis ends in the vas deferens, through which sperm pass to the prostate gland.

Male genital anatomy:

  • Testicle
  • Inguinal canal and scrotum
  • Prostate, testes, and penis
  • Prostate and bladder
  • Locations where lymph node swelling can be felt

Last Updated: Nov 4, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Torsion Testicle References
  1. Eaton SH, Cendron MA, Estrada CR, Bauer SB, Borer JG, Cilento BG, Diamond DA, Retik AB, Peters CA. Intermittent testicular torsion: diagnostic features and management outcomes. J Urol. 2005 Oct;174(4 Pt 2):1532-5. [16148646]
  2. Kadish HA, Bolte RG. A retrospective review of pediatric patients with epididymitis, testicular torsion, and torsion of testicular appendages. Pediatrics. 1998 Jul;102(1 Pt 1):73-6. [9651416]
  3. Kapasi Z, Halliday S. Best evidence topic report. Ultrasound in the diagnosis of testicular torsion. Emerg Med J. 2005 Aug;22(8):559-60. [16046758]
  4. Shergill IS, Foley CL, Arya M, Bott SR, Mundy AR. Testicular torsion unravelled. Hosp Med. 2002 Aug;63(8):456-9. [12212415]
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