Spinal Cord Anatomy - PowerPoint PPT Presentation

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Title:

Spinal Cord Anatomy

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SC.912.L.14.25 What are the major parts of the spinal cord? Grey Matter Cell bodies of neurons Dendrites White Matter Axons Grooves Dorsal median sulcus Ventral ... – PowerPoint PPT presentation

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Title: Spinal Cord Anatomy


1
Spinal Cord Anatomy
  • SC.912.L.14.25

2
Essential Question
  • What are the major parts of the spinal cord?

3
Major Features of Cross Section
  • Grey Matter
  • Cell bodies of neurons
  • Dendrites
  • White Matter
  • Axons
  • Grooves
  • Dorsal median sulcus
  • Ventral fissure
  • Horns
  • Dorsal horns sensory neurons
  • Ventral horns motor neurons

4
Some labels redacted for simplicity
5
White Matter
  • White matter is organized into three columns
  • Anterior, Lateral, and Posterior
  • Within the white matter there are specialized
    regions of axons
  • Sensory Ascending Tracts conduct nerve impulses
    to the brain
  • Motor Descending Tracts transmit impulses down
    the spinal cord

6
White matter
7
Spinal cord vs. Coaxial cable
  • How are they similar?
  • How are they different?
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