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Pyramidal Tract Pathway

image descriptionUpper level motor neuron:

  • Primary motor cortex
  • Internal capsule
  • Medulla pyramid
  • Cross over to opposite side
  • Corticospinal tract of spinal cord
  • Ventral horn of spinal cord

image descriptionLower level motor neuron:

  • Ventral horn
  • Spinal nerve
  • Effector skeletal muscle

image descriptionSekeletal muscle response::

Pathway overview:

Test yourself image showing action potential moving through pyramidal tract all numbered and without answers (Internal capsule, Corticospinal tract, Medulla pyramid, Primary motor cortex, Upper motor neuron, Lower motor neuron)
Test yourself image showing action potential moving through pyramidal tract all numbered and answered below (Internal capsule, Corticospinal tract, Medulla pyramid, Primary motor cortex, Upper motor neuron, Lower motor neuron)
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