Motor neurons extend axons to muscles and control muscle movement through neurotransmitter release.

“there are neurons there called motor neurons neur the motor neurons themselves what we call the cell bodies reside in the spinal cord in the so-call ventral Horn of the spinal cord you can look this up if you like although you don't need to know that and they extend little wires that we call axons out to the muscles and through the release of neurotransmitters they allow our muscles to move our flexors to flex like our bicep our extensors to extend like our tricep could think quadricep hamstring calf abdominal muscles all the movement of those muscles is controlled by neurons that reside within the spine cord”