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George E. Carvell, PhD, PT   University of Pittsburgh
BC&P fig 13.3  p 440
BC&P fig 12.8 p 404
BC&P fig 12.10 p 405
Dorsal Root Afferents
Ventral Root Efferents
Dorsal roots contain afferent axons that innervate sensory receptors in the periphery. Ventral roots contain efferent axons that innervate skeletal, intrafusal, cardiac & smooth muscle as well as glands in the periphery.
Smooth & cardiac muscle and glands are innervated by sympathetic C fibers from autonomic motoneurons in the lateral horn.
Segmental Spinal Nerves