Physiology of Penile Erection and Pathophysiology of Erectile Dysfunction

  • Anthony J. Bella
  • William O. Brant
  • Tom F. Lue
Part of the Medical Radiology book series (MEDRAD)


Penile erection is primarily a neurovascular event modulated by psychological and hormonal status. Sexual stimulation causes a release of neurotransmitters from the cavernous nerve terminals and relaxing factors from the endothelial cells in the penis, resulting in relaxation of smooth muscle in the arteries and arterioles supplying the erectile tissue.


Erectile Dysfunction Radical Prostatectomy Penile Erection Cavernous Nerve Venous Leakage 
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-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Anthony J. Bella
    • 1
  • William O. Brant
    • 2
  • Tom F. Lue
    • 3
  1. 1.Department of Surgery and Associate Scientist (Neuroscience)University of Ottawa, The Ottawa HospitalOttawaCanada
  2. 2.VailUSA
  3. 3.San FranciscoUSA

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