The Brazilian health system has become a field of disputes of a most diverse nature throughout time. The Unified Health System (SUS-Sistema Único de Saúde), a place where the practices of professional teams meet, has been a fertile ground for the fragmentation of activities and fear of the different. Disputes between medical and nursing practices define institutional arrangements to reassert their respective professional care logics in organizational designs (Merhy, 2012).As a result of the conflicting context of such practices, nurses experienced the emergence of events that have marked their sociopolitical action in defense of their profession and of healthcare users' rights. These events reflect the establishment of resistance strategies by these professionals against ideological contradictions, typical of a capitalist logic, in which health is an object of consumption and is centered on the biomedical model.The emergence of legal attempts by medical doctors that aim at centralizing care practices is directed to several health professions; however, it can be seen that there is a tendency toward greater containment over nurses' activities. This argument is supported by the number of legislative bills that collide with basic assumptions of the Nursing practice law, proposing the reduction and enumeration of health activities developed by Nursing professionals in the Brazilian health system.Being a profession that operates in the various dimensions of health, Nursing has been active in multiple spaces and in all SUS processes and procedures (management, program coordination, and care). For this reason, nurses play a fundamental role within the health system since, in addition to being the largest workforce