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George E. Carvell, PhD, PT   University of Pittsburgh
The distribution of nerve fibers differs for a deep muscle nerve vs. a superficial cutaneous nerve. C fibers in both represent afferent C and efferent (sympathetic) C axons.
BC&P fig 12.9 p 404
Most peripheral nerves contain both sensory and  motor axons. The distribution of sensory and motor axon type differs for terminal nerves innervating skeletal muscles (muscle nerve) vs. terminal nerves innervating skin, and joints (cutaneous nerves).
Although unmyelinated C fibers do not innervate the specialized skin or muscle mechano- receptors nor the motor units, C fibers represent the largest proportion of axons in a nerve (fig 24-13).
Conduction Velocities are for cats, humans conduct slower.