Chapter: Human Nervous System and Sensory Organs : Spinal Cord and Spinal Nerves
Brachial Plexus - Peripheral Nerves
Peripheral sensory innervation.The in-nervation of the skin by peripheral nerves originating from the plexus differs from the segmental innervation.
Brachial Plexus (C5 – T1)
Peripheral sensory innervation.The
in-nervation of the skin by peripheral nerves originating from the plexus
differs from the segmental innervation. The regions supplied by individual
nerves overlap at their margins. The region innervated by a single nerve is
called the autonomic zone (dark
blue), and the total area supplied by the nerve including the area cosupplied
by adjacent nerves is called the maximum
zone (light blue).
Clinical Note: Interruption of a nerve causescomplete insensibility (anesthesia) in the auto-nomic zone but only a decreased sensibility (hy-poesthesia) in the maximum zones.
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Human Nervous System and Sensory Organs : Spinal Cord and Spinal Nerves : Brachial Plexus - Peripheral Nerves |
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Human Nervous System and Sensory Organs : Spinal Cord and Spinal Nerves