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E. Carvell, PhD, PT
University of Pittsburgh
2305 ADVANCED NEUROSCIENCE
NERVOUS SYSTEM II: PERIPHERAL NERVOUS SYSTEM
nervous system (PNS) provides a link between you and the external world, and a
means of moving within your environment. The PNS includes dorsal & ventral
roots, dorsal root ganglia, mixed spinal nerves, plexi, and peripheral nerves.
The motor periphery includes the Alpha Motoneurons in the ventral horn, the
neuromuscular junction and most clinicians include skeletal muscle (as part of
the motor unit). PNS disorders may involve any of these structures. PNS
dysfunction and Clinical Electrophysiology are included.
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Myelinated Axons in X-Section BC&P fig 2.22 p 46
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