erection

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Priapism is a rare condition in childhood defined as the prolonged state of penile erection lasting more than 4 hours.
2] ED is defined as a man's consistent or recurrent inability to attain and/or maintain penile erection sufficient for satisfactory sexual activity.
To have an erection is the result of increased blood flow in the penis and to maintain penile erection depends on a healthy circulatory system.
In the present study, characterization of ethanolic extracts of the Spilanthes acmella flower and its effect on general mating pattern, penile erection and serum hormone levels of normal male Wistar albino rats were investigated and compared with sildenafil citrate.
Testosterone is not only a factor in libido but exerts also essential effects on the anatomical and physiological substrate of penile erection.
Erectile dysfunction (ED) is defined as the consistent or recurrent inability of a man to attain and /or maintain a penile erection sufficient for sexual activity.
Erectile dysfunction (ED) is defined as the consistent or recurrent inability of a man to attain and/or maintain a penile erection sufficient for sexual performance(2)
Because the penile erection data showed a clear dose-response relationship with evidence that even the lowest dose of Vz disrupted the behavior, we further examined the data with Benchmark Dose Modeling Software (BMDS; version 1.
Comment: In 22 studies of up to 24 weeks in over 4,000 patients aged 27-87 years, including men with diabetes or radical prostatectomy, Cialis "improved patients' ability to achieve and maintain a penile erection," the Food and Drug Administration said in a statement.
THE PHYSIOLOGICAL MECHANISMS of erections include neural initiation of penile erection following erectogenic stimuli, cellular activation of smooth muscle relaxation, and smooth muscle relaxation in the corpus cavernosum of the penis.
In the 1990s and now the 21st century, ED has been defined as the consistent inability to attain and maintain penile erection sufficient to permit satisfactory intercourse.
ABSTRACT: This paper describes the physiological processes involved in penile erection and uses this information to explain the mode of action of oral medications used in the treatment of erectile dysfunction (ED).