In the Horizonte Verde region four types of arrangements are identified, in the region of Aquífero Guarani six types, and five distinct arrangements in the Vale das Cachoeiras region. It is verified that the majority of the teams are organized under the perspective of the Family Health Strategy model in the three health regions analyzed. The availability of materials, equipment, the structure of the primary care unit and aspects of the work process differ discretely between the arrangements. Each health region seems to exert influence in the organization of its services, determining similarities between the different arrangements when the health units are from the same region. The organization of primary care services regarding the structure and work process should be guided by the needs of the assisted population, so it is important to invest in physical structure, materials, equipment and training of professionals to work in PHC, under the premise of strengthening all health system.