[1] They have a smooth and rounded cell body located in the ganglia of the peripheral nervous system.

[1][2] All of the axons in the dorsal root, which contains afferent nerve fibers, are used in the transduction of somatosensory information.

The third order neuron's axon terminates at the primary somatosensory cortex of the parietal lobe.

Alternatively, in the sensory system, afferent fibers can be classified by sizes with category specifications depending on if they innervate the skins or muscles.

[6] Another mnemonic device used for remembering afferent and efferent (in terms of the spinal cord, with its dorsal/ventral organization) is SAME DAVE.