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Physiologie de l’éjaculation

The physiology of ejaculation

  • Dossier Thématique / Thematic File
  • Published:
Pelvi-périnéologie

Résumé

Si les données issues de la recherche animale et clinique sont assez claires sur la physiologie de l’érection, les phénomènes physiologiques au cours de l’éjaculation, leur régulation périphérique et centrale restent peu étudiés. Cela contraste avec la forte prévalence des troubles de l’éjaculation chez l’homme, ainsi qu’avec des solutions thérapeutiques pharmacologiques encore peu développées. De récentes données issues de travaux fondamentaux chez le rat suggèrent l’existence d’un centre spinal générateur de l’éjaculation, coordonnant les différents événements physiologiques. La possibilité d’un tel centre chez l’homme est supportée par la possibilité d’induire de manière réflexe une éjaculation chez le patient paraplégique par stimulation mécanique des afférences du nerf dorsal de la verge.

Abstract

Although extensive literature is available concerning the physiology of erection, the physiological events associated with ejaculation, and their peripheral and central regulations are poorly addressed by the scientific community. This is in contrast with a high prevalence of ejaculatory disorders in men as well as very few clinical studies on drugs that act on premature ejaculation. Recent data from basic experiments on rats suggest that a group of spinal neurons may act as a central generator to coordinate the different physiological events during ejaculation. The evidence of such a spinal generator in men is also supported by the possibility of inducing a reflex ejaculation in spinal cord injured patients by mechanical stimulation of the dorsal penile nerve afferences.

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Authors and Affiliations

  1. Service de médecine physique et de réadaptation, unité de neuro-urologie, hôpital Raymond-Poincaré, 104, boulevard Raymond-Poincaré, F-92380, Garches, France

    P. Denys, A. Even-Schneider, D. Bensmail & F. Giuliano

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  1. P. Denys
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  2. A. Even-Schneider
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  3. D. Bensmail
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  4. F. Giuliano
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Correspondence to P. Denys.

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Denys, P., Even-Schneider, A., Bensmail, D. et al. Physiologie de l’éjaculation. Pelv Perineol 2, 342–345 (2007). https://doi.org/10.1007/s11608-007-0154-9

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  • DOI: https://doi.org/10.1007/s11608-007-0154-9

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