the sensory neurons send information to spinal cord that sends it to the brain then it processes the information and commands the decision accordingly after that motor neurons carry the commands to the required organ now the muscles mere follow the commands of brain delivered by the motor neurons in systematical way is information collected ⇒ received ⇒processed ⇒commands ⇒decision made⇒ commands to the⇒ organ ( muscles ) ⇒muscles contract ⇒ locomotion occurs .