Erection and sensation of the penis is in what dermatomes?
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Answer Posted / joseph anzalone
The above answer is partially correct. Men normally have two
types of erections. The brain is the source of psychogenic
erections. The process begins with sexual thoughts or seeing
or hearing something stimulating or arousing. Signals from
the brain are then sent through the nerves of the spinal
cord down to the T10-L2 levels. The signals are then relayed
to the penis and trigger an erection. A reflex erection
occurs with direct physical contact to the penis or other
erotic areas such as the ears, nipples or neck. A reflex
erection is involuntary and can occur without sexually
stimulating thoughts. The nerves that control a man’s
ability to have a reflex erection are located in the sacral
nerves (S2-S4) of the spinal cord.
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