Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Human penile hemodynamics studied by a polarographic method.

H Aoki, H Takagane, Y Banya

    The Journal of Urology
    |April 1, 1986
    PubMed
    Summary

    Penile erection involves complex blood flow changes. Increased blood flow to the corpus cavernosum during tumescence is crucial, with outflow resistance developing post-erection.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Effects of premotion silent period on single motor unit firing at initiation of a rapid contraction.

    Electroencephalography and clinical neurophysiology·1995
    Same author

    [Long-term results of Bentall and modified Bentall procedure in aortic root replacement].

    Kyobu geka. The Japanese journal of thoracic surgery·1995
    Same author

    Involvement of N-linked carbohydrate chains of pig zona pellucida in sperm-egg binding.

    European journal of biochemistry·1995
    Same author

    Resolution of metastatic bone lesions following combination therapy with active vitamin D3 analogue and interferon-alpha in a patient with renal cell carcinoma.

    The Journal of urology·1995
    Same author

    Suppression by prolactin of the electrically induced erectile response through its direct effect on the corpus cavernosum penis in the dog.

    The Journal of urology·1995
    Same author

    [A huge idiopathic brain stone in the posterior fossa].

    No shinkei geka. Neurological surgery·1995

    Area of Science:

    • Physiology
    • Urology
    • Hemodynamics

    Background:

    • Penile erection is a complex physiological process involving significant hemodynamic changes.
    • Understanding blood flow dynamics in the penile tissues is essential for diagnosing and treating erectile dysfunction.

    Purpose of the Study:

    • To investigate tissue oxygen tension alterations as an index of blood flow changes in penile skin and corpus cavernosum during erection.
    • To determine the relationship between corpus cavernosum oxygen tension and penile circumference changes during the erection process.

    Main Methods:

    • Employed the polarographic method with an open-tip oxygen electrode to measure tissue oxygen tension.
    • Observed changes in 16 males (aged 20-26) for penile skin and corpus cavernosum, and in 5 males (aged 18-21) correlating oxygen tension with penile circumference.

    Related Experiment Videos

    Main Results:

    • Flaccid penis shows low oxygen in the corpus cavernosum due to vascular blockade.
    • During tumescence, corpus cavernosum blood flow increases with relief of blockade; penile skin blood flow initially rises then falls.
    • Erection involves inflow resistance likely from outflow pathway contraction; detumescence requires increased outflow.

    Conclusions:

    • Penile erection is characterized by dynamic shifts in blood flow and oxygen tension within the corpus cavernosum and penile skin.
    • Vascular blockade relief initiates tumescence, while outflow regulation is key to maintaining erection and enabling detumescence.