Book contents
- Insights into Clinical Neurology
- Insights into Clinical Neurology
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgments
- Chapter 1 The Amnesic Syndrome
- Chapter 2 Aphasia, Apraxia, and Agnosia
- Chapter 3 Spurious Symptoms and Behaviors
- Chapter 4 Hallucinations
- Chapter 5 Grasping and the Grasp Reflex
- Chapter 6 Asterixis
- Chapter 7 Discussion of the Upper Motor Neuron Syndrome
- Chapter 8 Some Aspects of the Lower Motor Neuron Syndrome
- Chapter 9 The Limbic System
- Chapter 10 Vibration Sensation, the Posterior Columns, and Related Topics
- Chapter 11 Transneuronal Effects
- Chapter 12 Spinal Nerve Roots
- Chapter 13 Ischemic Hypoxic Encephalopathy
- Chapter 14 The Liver–Brain Relationship in Wilson Disease
- Chapter 15 Wernicke Disease
- Chapter 16 Delayed Neurologic Disorders after Toxic or Metabolic Insults
- Chapter 17 Transolfactory Spread in the Pathogenesis of Meningoencephalitis
- Chapter 18 Neurologic Disorders in Endocarditis
- Chapter 19 Secondary Abscess Formation in Primary Brain Lesions
- Chapter 20 Progressive Multifocal Leukoencephalopathy: The Early Years
- Index
- References
Chapter 12 - Spinal Nerve Roots
Published online by Cambridge University Press: 27 July 2023
Book contents
- Insights into Clinical Neurology
- Insights into Clinical Neurology
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgments
- Chapter 1 The Amnesic Syndrome
- Chapter 2 Aphasia, Apraxia, and Agnosia
- Chapter 3 Spurious Symptoms and Behaviors
- Chapter 4 Hallucinations
- Chapter 5 Grasping and the Grasp Reflex
- Chapter 6 Asterixis
- Chapter 7 Discussion of the Upper Motor Neuron Syndrome
- Chapter 8 Some Aspects of the Lower Motor Neuron Syndrome
- Chapter 9 The Limbic System
- Chapter 10 Vibration Sensation, the Posterior Columns, and Related Topics
- Chapter 11 Transneuronal Effects
- Chapter 12 Spinal Nerve Roots
- Chapter 13 Ischemic Hypoxic Encephalopathy
- Chapter 14 The Liver–Brain Relationship in Wilson Disease
- Chapter 15 Wernicke Disease
- Chapter 16 Delayed Neurologic Disorders after Toxic or Metabolic Insults
- Chapter 17 Transolfactory Spread in the Pathogenesis of Meningoencephalitis
- Chapter 18 Neurologic Disorders in Endocarditis
- Chapter 19 Secondary Abscess Formation in Primary Brain Lesions
- Chapter 20 Progressive Multifocal Leukoencephalopathy: The Early Years
- Index
- References
Summary
Principles of anatomy relevant to radiculopathy are discussed. Spondylotic pathology is proximal to the dorsal root ganglia (DRG). As a result DRG axons to the periphery are unaffected. This topography means that sensory radicular symptoms are unaccompanied by abnormality on sensory nerve conduction studies. Due to regional differences in the angulation of the intervertebral foramina, sagittal MRI images are better for demonstrating foraminal stenosis in the lumbar than in the cervical region. Myotomes and dermatomes vary between individuals.
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- Insights into Clinical Neurology , pp. 63 - 65Publisher: Cambridge University PressPrint publication year: 2023
References
Campbell, W. W., Barohn, R. J.. DeJong’s The Neurologic Examination. Philadelphia, Wolters Kluwer, 2019.Google Scholar
Thage, O.. The myotomes L2–S2 in man. Acta Neurol Scand Suppl 1965; 13: 241–243.Google ScholarPubMed
Inouye, Y., Buchthal, F.. Segmental sensory innervation determined by potentials recorded from cervical spinal nerves. Brain 1977; 100: 731–748.CrossRefGoogle ScholarPubMed
Sherrington, C. S.. Experiments in examination of the peripheral distribution of the fibres of the posterior roots of some spinal nerves. Philos Trans R Soc London B Part I 1893; 184: 641–763, Part II 1898: 190: 45–186.Google Scholar