Notes

Alpha Motor Neuron is the Final Common Path for all movements. Movement can be generated from:

• Sensory signals in the muscle spindle like the stretch reflex.
• Sensory signals from skin as in the pain withdrawal response.
• Involuntary signals from the brainstem for posture, keeping us upright without conscious attention.
• Signals from the brain for voluntary movement.

But, regardless of where the signal originates, all movement is the result of activity in the Alpha Motor Neuron - making this the Final Common Path.