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Prerequisite basic sciences
Anatomy clinical correlates: Spinal cord pathways
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But what happens when this information highway is disrupted or damaged? Well, injury to the spinal cord leads to a variety of classic clinical conditions with predictable deficits which we will explore in this video, so let’s get to it!
Okay, before we move on to spinal cord injuries, let’s freshen up our knowledge of the spinal cord itself. Zooming in on a cross-section of the spinal cord, it’s made up of both grey and white matter.
Grey matter is found in the centre of the spinal cord and has two dorsal or posterior horns that contain sensory neuron cell bodies, and two ventral or anterior horns that contain motor neuron cell bodies.
The lateral tract carries sensory information for pain and temperature, while the anterior tract carries information for crude touch and pressure.
Next, there are two dorsal column tracts: the fasciculus gracilis which carries sensory information from the lower trunk and legs, and the fasciculus cuneatus which carries sensory information from the upper trunk and arms.
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