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Spinal Cord Gray Matter Functions

  • The gray matter is the area of the spinal cord where many types of neurons synapse.
  • In the image descriptiondorsal horns (or posterior horns), many incoming sensory neurons synapse with interneurons, which then distribute information to other parts of the spinal cord and brain.
An image showing a spinal cord segment without the pathways
An image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron (without labels)
An image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron
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  • Some of the interneurons use the image descriptiongray commissure to cross over to the other side of the spinal cord.
An image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron
An image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron passing through the gray commissure (which are labeled)
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  • In the image descriptionventral horns (or anterior horns), descending upper level motor neurons (and other types of neurons) synapse with outgoing lower level motor neurons.
An image showing a spinal cord segment without the pathways
An image showing the pathway of the lateral horn of the spinal cord using Upper and Lower motor neurons (without labels)
An image showing the pathway of the lateral horn of the spinal cord using Upper and Lower motor neurons (with labels)
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  • In the image descriptionlateral horns, descending autonomic pathway neurons synapse with outgoing sympathetic motor neurons.
An image showing a spinal cord segment without the pathways
An image showing the pathway of the lateral horn of the spinal cord using 1. Descending autonomic neuron 2. Presynaptic neuron 3. Postsynaptic neuron (without labels)
An image showing the pathway of the lateral horn of the spinal cord using 1. Descending autonomic neuron 2. Presynaptic neuron 3. Postsynaptic neuron (which are labeled)
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Overview:

[ image descriptionDorsal horn / image descriptionVentral horn / image descriptionLateral horn ]

Test yourself image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron numbered without answers
Test yourself image showing the pathway of the dorsal horn of the spinal cord using sensory and inter neuron numbered with answers below
Test yourself image showing the pathway of the lateral horn of the spinal cord using Upper and Lower motor neurons numbered without answers
Test yourself image showing the pathway of the lateral horn of the spinal cord using Upper and Lower motor neurons numbered with answers below
Test yourself image showing the pathway of the lateral horn of the spinal cord using 1. Descending autonomic neuron 2. Presynaptic neuron 3. Postsynaptic neuron numbered without answers
Test yourself image showing the pathway of the lateral horn of the spinal cord using 1. Descending autonomic neuron 2. Presynaptic neuron 3. Postsynaptic neuron numbered with answers below
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