Figure. The microsystem is closest to the child and contains structures as family, school staff and mates. At this level
the relationships have impact in directions both away from and towards the child. The mesosystem provides the connections
and relations between the different microsystems. The exosystem defines the larger social systems in which
the child does not function directly but has impact on the microlevel structure such as parent’s workplace, school resources
and the municipality. The macrosystem level comprises of e.g. cultural values, customs and laws influencing
the interactions of all other layers. The model describes the school nurse as a collaborator and bridge builder where
health promotion of universal, selective and indicated level of both the individual and the group perspective are central.