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Table of contents

Author: Dean Hillman

Homepage: http://www.mindoverbrain.com/

Organization of the PNS PNS- SENSORY/MOTOR SYSTEM PNS vs CNS COMPONENTS OF PNS What are the limits of the PNS? Slide 6 PNS Versus CNS SPINAL NERVES- CORD/VERTEBRAL COLUMN CSF Spaces PNS NEURONS AND AXONS Dorsal Root Ganglion Cells- Spinal Cord Input Sources Vertebral Column and Spinal Cord Cord Termination & Segment Levels Spinal Cord to Root Relationships Typical Spinal Nerves Dermatomes Ventral View Distribution of Dermatomes at Appendages Limb Bud - Sensory Somite/Dermatome Growth Lumbo-Sacral Spinal Cord SEGMENTAL OVERLAP Cervical Nerves BRACHIAL PLEXUS Brachial Plexus Slide 23 LUMBO-SACRAL PLEXUS Endorgans of DRG’s RECEPTORS IN SKIN SKIN RECEPTORS PNS INPUT MUSCLE SPINDLES & GOLGI TENDON ORGANS Mesoderm Establishes Modalities of Peripheral Sensory Organs VESTIBULAR PERIPHERAL ORGANS Vestibular Receptor Cells Auditory Receptor Cells PNS MOTOR OUTPUT MOTOR/SENSORY ORGANIZATION Viscera & Eye Sympthetic Innervation SOMATIC SYMPATHETIC PARASYMPATHETIC DISTRIBUTION SENSORY IN - MOTOR OUT SUMMARY OF PNS