Generation of a long process of a CNS neuron, that carries efferent (outgoing) action potentials from the cell body in the spinal cord towards target cells in the thalamus. This axonal process is a member of those that make up the spinothalamic tract, one of the major routes of nociceptive signaling.
Source:
GOC:cls,
GOC:dph,
GO_REF:0000021,
GOC:dgh,
GOC:jid