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PowerPoint® Lecture Slide Presentation
by Patty Bostwick-Taylor,
Florence-Darlington Technical College

The Nervous
System...
Spinal Cord
 Extends from the foramen magnum of the skull to
the first or second lumbar vertebra
 31 pairs of spinal ner...
Spinal Cord Anatomy

Figure 7.20 (1 of 2)
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
Spinal Cord Anatomy

Figure 7.20 (2 of 2)
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
PNS: Spinal Nerves

Figure 7.25a
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
Spinal Cord Anatomy
 Internal gray matter is mostly cell bodies
 Dorsal (posterior) horns
 Anterior (ventral) horns
 G...
Spinal Cord Anatomy

Figure 7.21
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
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Ch7dppt spinal cord 1

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Ch7dppt spinal cord 1

  1. 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. 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. 3. Spinal Cord Anatomy Figure 7.20 (1 of 2) Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  4. 4. Spinal Cord Anatomy Figure 7.20 (2 of 2) Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  5. 5. PNS: Spinal Nerves Figure 7.25a Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings
  6. 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. 7. Spinal Cord Anatomy Figure 7.21 Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings

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