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I know most people can't enjoy sex if their spinal cord injured.

How spinal cord play its roles in human beings sex?

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closed as off-topic by anongoodnurse, canadianer, AliceD, another 'Homo sapien', David Mar 26 '17 at 14:12

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Homework questions are off-topic on Biology unless you have shown your attempt at an answer. For more information see our homework policy." – anongoodnurse, another 'Homo sapien'
If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ can you add some background information or references germane to the question? $\endgroup$ – Vance L Albaugh Mar 25 '17 at 11:45
  • $\begingroup$ Assuming that the basis of your question is correct, maybe because ejaculation is controlled by parasympathetic nervous system. $\endgroup$ – another 'Homo sapien' Mar 26 '17 at 14:09
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One of the major functions of the spinal cord is to serve as a "highway" for signals to travel between the brain and the sensory (and motor) organs. Thus, sensory the signals that are generated on the body during sex must travel up through the spinal cord in order to get to the brain, where it will be processed into a pleasurable sensation. If the spinal cord is damaged, the signals will not be able to reach the brain and thus there will be no generation of pleasurable sensations.

Here's an image that shows the general sensory pathways. You can see they travel from the sensory organ to the spinal cord, and up it to the brain.

the general sensory pathways

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