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.
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...
More
Dr. Harris McIlwain answered: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.
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... More
