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Male and Female Genitourinary (GU) Systems

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

Abstract

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.

Keywords

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.

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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

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