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Science 3 June 1983:
Vol. 220. no. 4601, pp. 1080 - 1082
DOI: 10.1126/science.6844930
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Articles

Science, Vol 220, Issue 4601, 1080-1082
Copyright © 1983 by American Association for the Advancement of Science

articles

Erectile mechanisms in man

I Karacan, C Aslan, and M Hirshkowitz

Increases in penile circumference during sleep-related erections in human subjects closely reflected increases in penile blood flow, and bursts of activity in the bulbocavernosus and ischiocavernosus muscles were temporally related to these increases. The penile arterial system and the perineal muscles appear to have important coordinated roles in human penile erection. Monitoring sleep-related erections and penile blood flow holds promise for the study of erectile mechanisms and dysfunction and for screening of drugs.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)