Advertisement

What is the ejaculation reflex?

Harris H. McIlwain, MD
Rheumatology
The ejaculation reflex allows for delivery of the sperm during the climax in sexual intercourse. Nerve messages from the brain and from the nerves of the penis are needed to trigger the nerve reflex that causes contraction of the passages leading from the testicles containing sperm. The sperm and fluid from the passages travel to the urethra, but are not allowed to go backward into the bladder. This is because the muscles at the bladder become tight and close off the bladder. The time of release of the sperm and fluid and the feelings associated at the time are the orgasm. At this moment, the muscles around the urethra contract to ensure ejaculation of the fluid and sperm.
Unofficial Guide to Impotence

More About this Book

Unofficial Guide to Impotence

The Unofficial Guide to Conquering Impotence delivers the inside scoop on impotence: the truth about Viagra, what treatments really work, and how lifestyle changes can aid in conquering...

Continue Learning about Orgasm

What is the postejaculatory refractory period?
Emily NagoskiEmily Nagoski
Men experience a postejaculatory refractory period, when their bodies do not respond to sexual stimu...
More Answers
How do men and women differ in terms of reaching orgasm?
Emily NagoskiEmily Nagoski
Virtually all heterosexual men are reliably orgasmic from penile-vaginal intercourse, while only abo...
More Answers
What Causes an Orgasm?
What Causes an Orgasm?
What Is an Orgasm?
What Is an Orgasm?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.