3.Orgasm
射精 Ejaculation In males,
orgasm begins with involuntary rhythmic contractions of the
genital ducts and accessory organs (vasa deferentia,
seminal vesicles, prostate gland), the urethra, the muscles at
the base of the penis and finally the penis itself. The first
three or four forceful contractions recur within less than a
second, then, as they become weaker, at longer intervals. In
sexually mature males, orgasm is usually accompanied by the
ejaculation (lat.: throwing out) of semen: As a result of the
orgasmic muscular contractions, the accumulated semen is
forced through the urethra to the outside where it emerges in
several quick spurts. At times, it may be projected a
considerable distance; at other times, it may flow out rather
gently. The force of a particular ejaculation is not related
to a man's strength or
virility. |