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Anatomy of the Spinal Cord and Brain

  • Bruce W. Newton

Introduction

The central nervous system (CNS) is divided into a rostral brain and a caudal spinal cord. The brain is contained in the cranial cavity, and the spinal cord is located in the vertebral canal that is formed by the 31 vertebral foraminae from the individual vertebra. The two are continuous with one another at the foramen magnum of the occipital bone. Any neural structure that lies outside the pia mater covering of the CNS is considered part of the peripheral nervous system. Therefore, the 12 pairs of cranial nerves, which arise from the brain, and the 31 pairs of spinal nerves originating from the spinal cord with their associated ganglia are, by convention, part of the peripheral nervous system. Both the brain and spinal cord are organized into gray matter, where the neuronal cell bodies are located and white matter, which contains the long myelinated tracts of the CNS. Spinal cord gray matter is centrally located and surrounded by white matter, whereas the opposite occurs...

Keywords

Dura Mater Superior Sagittal Sinus Posterior Inferior Cerebellar Artery Cerebral Vein Posterior Cranial Fossa 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Selected Readings

  1. Fillingim RB. Sex, gender, and pain. In: Progress in Pain Research Management, vol. 17. Seattle: IASP Press, 2000.Google Scholar
  2. Haines DE. Neuroanatomy. An Atlas of Structures, Sections, and Systems, 7th ed. New York: Lippincott Williams & Wilkins, 2008.Google Scholar
  3. Larsen WJ. Human Embryology, 2nd ed. New York: Churchill Livingstone, 1997.Google Scholar
  4. Newton BW, Hamill RW. Sexual differentiation of the autonomic nervous system. In: Unsicker K, ed. Autonomic-Endocrine Interactions. Amsterdam, The Netherlands: Harwood Academic Publishers, 1996:425–463.Google Scholar
  5. Newton BW. Galanin-like immunoreactivity in autonomic regions of the rat lumbosacral spinal cord is sexually dimorphic and varies with the estrous cycle. Brain Res 1992;589:69–83.PubMedCrossRefGoogle Scholar
  6. Newton BW, Phan DC. Androgens regulate the sexually dimorphic production of co-contained galanin and cholecystokinin in lumbar laminae VII and X neurons. Brain Res 2006;1099:88–96.PubMedCrossRefGoogle Scholar
  7. Nolte J. The Human Brain. An Introduction to Its Functional Anatomy, 5th ed. St. Louis: Mosby, 2002.Google Scholar
  8. Wilson-Pauwels L, Stewart PA and Akesson EJ. Autonomic Nerves. Hamilton, Ontario, Canada: B.C. Decker. Inc., 1997.Google Scholar

Copyright information

© Humana Press, Totowa, NJ 2008

Authors and Affiliations

  • Bruce W. Newton
    • 1
  1. 1.Department of Neurobiology and Developmental SciencesUniversity of Arkansas for Medical SciencesLittle RockUSA

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