In descending motor pathways, such as the ventral and lateral corticospinal tracts, _________________ neurons originate in the gray matter of the brain and send long axons down a descending tract of the spinal cord. These axons synapse with ________________ neurons in the ventral horn of the spinal cord. The axons of these neurons will then exit the spinal cord and innervate the muscles or glands of the body.
Question
In descending motor pathways, such as the ventral and lateral corticospinal tracts, _________________ neurons originate in the gray matter of the brain and send long axons down a descending tract of the spinal cord. These axons synapse with ________________ neurons in the ventral horn of the spinal cord. The axons of these neurons will then exit the spinal cord and innervate the muscles or glands of the body.
Solution
In descending motor pathways, such as the ventral and lateral corticospinal tracts, upper motor neurons originate in the gray matter of the brain and send long axons down a descending tract of the spinal cord. These axons synapse with lower motor neurons in the ventral horn of the spinal cord. The axons of these neurons will then exit the spinal cord and innervate the muscles or glands of the body.
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