The interrelationships between all organ systems of the body could be exhibited as:

Monitor the health of neurons.

Controls visual-spatial skills, emotion and artistic skills.

Controls voluntary movements.

The complementarity between structure and function is best explained as follows:

Provide a supportive scaffolding for neurons.

Carries messages to and from the spinal cord and the brain.

Carries impulses from the sensory organs to the CNS.

Involved in speech preparation and production.

Transmits impulses away from the synapse.