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Ch7dppt spinal cord 1

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Used with permission from Pearson for Clay Virtual Academy. Copyright Pearson, Inc.

Used with permission from Pearson for Clay Virtual Academy. Copyright Pearson, Inc.

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  • 1. PowerPoint® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College The Nervous System 7 PART D Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 2. Spinal Cord  Extends from the foramen magnum of the skull to the first or second lumbar vertebra  31 pairs of spinal nerves arise from the spinal cord  Cauda equina is a collection of spinal nerves at the inferior end Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 3. Spinal Cord Anatomy Figure 7.20 (1 of 2) Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 4. Spinal Cord Anatomy Figure 7.20 (2 of 2) Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 5. PNS: Spinal Nerves Figure 7.25a Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 6. Spinal Cord Anatomy  Internal gray matter is mostly cell bodies  Dorsal (posterior) horns  Anterior (ventral) horns  Gray matter surrounds the central canal  Central canal is filled with cerebrospinal fluid  Exterior white mater—conduction tracts  Dorsal, lateral, ventral columns Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  • 7. Spinal Cord Anatomy Figure 7.21 Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings