If you step on a tack, peripheral neurons carry that pain in…
If you step on a tack, peripheral neurons carry that pain information to the central nervous system. These peripheral neurons first synapse onto spinal projection neurons that have their cell bodies in the spinal cord. These spinal projection neurons then carry the pain information to the brain. Consider the image below. Where are the cell bodies of the neurons that these spinal projection neurons synapse onto? In other words, if the spinal projection neurons are the presynaptic cell, where are the cell bodies of the neurons that are the postsynaptic cell?