Amazing Mechanism of Ejaculation

Ejaculation is the ejection of semen out through the urethra of a man.

During sex or masturbation, semen collect in the ejaculatory duct. Ejaculation begins when a man has received enough sexual stimulation through kissing, stroking etc which leads to accumulation of pre-ejaculatory fluid.

Under the control of the sympathetic nervous system, rhythmic contractions occur within the muscles in the urethra, prostate gland and the perineal muscles.

About 10-15 contractions occur before ejaculation. Once the first contraction has occurred, the man will have no control over the ejection. This is known as Ejaculatory Inevitability.

At the start of ejaculation, pulses of semen begin to flow from the urethra. They reach a peak discharge and diminish in flow.

The discharge could shoot a distance of 30-60cm.

After ejaculation comes the REFRACTIVE PERIOD, during which most men are unable to get another erection until after about 15 minutes . This is a period of relaxation.

Quantity of semen in 10mls (2 teaspoonfuls) and is dependent on the duration of abstinence from sex.

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