Movement is made possible by the activation of muscle groups. There is an interaction between the nervous system and the muscle system.
- Central nervous system: brain initiates the action
- Peripheral nervous system: spinal cord & peripheral nerves is the conduit to relay information to the muscle groups
Skeletal function is dependent on the central nervous system. The peripheral nervous system is the relay system conducting the commands to initiate muscle contraction & movement
Involuntary muscle contraction to a painful stimulus is coordinated via a reflex spinal arc in response to an acute stimulus