HOW THE NERVOUS SYSTEM TRIGGERS AND CONTROLS THE ERECTION
The erection is triggered and controlled by the following events:
- Something stimulates sensorial bodies in the genital zone or other senses. Impulses are then sent from the senses through nerves and the spinal cord towards the brain, and reaches the upper areas of the brain. The brain then recognizes these impulses as something sexually arousing. Also thoughts originating in the brain itself may be recognized as something sexually arousing. kaufen viagra
- The higher brain areas having recognized some arousing events then send impulses down to the limbic system at the lower area of the brain. It is the limbic system that actually produces the feeling of excitement.
- The limbic system sends signals down the spinal cord and out to the genital area through nerves called nervi erigentes - a part of the parasympatic nervous system
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- The signals reaching the penis and the rest of the genital zone then trigger erection and engorgement of the area between the man’s legs.
- Stimuli to the penile or genital sensorial bodies do not need to reach the brain to result in an erection. Areas in the spinal cord will also recognize the stimuli and get excited. Then the spinal cord also by its own sends erectile impulses back to the genital area.
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- The sensorial bodies in the genital area will also be stimulated mechanically by the erection. Since stimulation of these bodies trigger erection, the erection process is self enforcing. A beginning erection thus trigger even more erection.