Male and Female Genitourinary (GU) Systems

  • Enid Gilbert-Barness
  • Diane E. Spicer
  • Thora S. Steffensen


The narrowest point of the urethra is at the junction of prostatic and membranous portions. However, the lumen is just a slit except when urine is being passed. Running along the posterior wall of the prostatic urethra is a 17 × 3 mm longitudinal ridge, the verumontanum. At the midpoint of the verumontanum is a rounded elevation, the colliculus seminalis, into which open the slits of the ejaculatory ducts and also the prostatic utricle, a 6-mm diverticulum homologous with the lower vagina. The membranous urethra is the segment that is surrounded by the sphincter urethrae. Many small urethral glands (of Littre) open into the penile urethra. In addition, it receives the ducts of the bulbourethral glands (of Cowper) 2.5 cm from its origin.


Fallopian Tube Congenital Adrenal Hyperplasia Inguinal Canal Prostatic Urethra Urethral Diverticulum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Burke CW. Female genital system. In: Stevenson RE, eds. Human malformations and related anomalies. New York: Oxford University Press; 2006;1290.Google Scholar
  2. Frimberger D, Gearhart JP. Ambiguous genitalia and intersex. Urol Int. 2005;75:291–7.CrossRefPubMedGoogle Scholar
  3. Gilbert-Barness E, Debich-Spicer D. Embryo and fetal pathology, a color atlas with ultrasound correlation. New York: Cambridge University Press; 2004.CrossRefGoogle Scholar
  4. Gilbert-Barness E, editor. Potter’s pathology of the fetus, infant and child. Philadelphia: Mosby Elsevier; 2007.Google Scholar
  5. Gilbert-Barness E, editor. Potter’s atlas of developmental and infant pathology. Philadelphia: Mosby Year Book, Inc.; 1998.Google Scholar
  6. Hegarty D, Mushtaq I, Sebire NJ. Natural history of testicular regression syndrome and consequences for clinical management. J Pediatr Urol. 2007;3(3):206–8.CrossRefPubMedGoogle Scholar
  7. McLean TW, Castellino SM. Pediatric genitourinary tumors. Curr Opin Oncol. 2008;20(30):315–20.CrossRefPubMedGoogle Scholar
  8. Pryses-Davies J. The development, structure and function of the female pelvic organs in childhood. Clin Obstet Gynaecol. 1974;1:483–508.Google Scholar
  9. Rezek PR, Millard M. Autopsy pathology. Springfield: Charles C. Thomas; 1963.Google Scholar
  10. Stocker JT, Dehner LP, Husain AN. Stocker and Dehner pediatric pathology. 3rd ed. Philadelphia: Lippincott, Williams & Wilkins; 2011.Google Scholar
  11. Virtanen HE, Tapanainen AE, Kaleva MM, et al. Mild gestational diabetes as a risk factor for congenital cryptorchidism. J Clin Endocrinol Metab. 2006;91(12):4862–5.CrossRefPubMedGoogle Scholar
  12. Yamada G, Satoh Y, Baskin LS, et al. Cellular and molecular mechanisms of development of the external genitalia. Differentiation. 2003;71:445–60.CrossRefPubMedGoogle Scholar
  13. Yordam N, Alikasifoglu A, Kandemir N, et al. True hermaphroditism: clinical features, genetic variants and gonadal histology. J Pediatr Endocrinol Metab. 2001;14(4):421–7.CrossRefPubMedGoogle Scholar
  14. Zhang M, Cheung MK, Shin JY, et al. Prognostic factors responsible for survival in sex cord stromal tumors of the ovary: an analysis of 376 women. Gynecol Oncol. 2007;104:396–400.CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Enid Gilbert-Barness
    • 1
  • Diane E. Spicer
    • 2
  • Thora S. Steffensen
    • 3
  1. 1.Laboratory Medicine, Pediatrics and Obstetrics and Gynecology Tampa General Hospital Morsani College of MedicineUniversity of South FloridaTampaUSA
  2. 2.Department of Pediatrics-CardiologyUniversity of FloridaValricoUSA
  3. 3.Department of PathologyTampa General HospitalTampaUSA

Personalised recommendations