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Neuroscience question

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Neuroscience question

Postby Condraz23 » Mon Feb 15, 2010 11:17 am

OK, so I'm having trouble understanding a particular part of the nervous system.

The skin is connected to the primary somatosensory cortex through afferent (receving information) neurons. As I understand it, there is only one ganglion connecting the central nervous system to the skin, unlike the ganglia of the autonomic nervous system where there is a separate preganglionic ganglion and autonomic ganglion.

Which is the one that connects the skin to the CNS? I always thought it was the primary afferent neurons but I've also got a source which states that the dorsal root ganglions also play a role in this. After all, since it's a pseudounipolar ganglion, the distal process could be the one that connects to the skin and the proximal process could be the one that's connected to the central nervous system (CNS).

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