In larger institutions, the curator's primary function is that of a subject specialist, with the expectation that he or she will conduct original research on objects and guide the organization in its collecting. Such institutions can have multiple curators, each assigned to a specific collecting area (e.g., curator of ancient art, curator of prints and drawings, etc.) and often operating under the direction of a head curator. In such organizations, the physical care of the collection may be overseen by museum collections-managers or by museum conservators, with documentation and administrative matters (such as personnel, insurance, and loans) handled by a museum registrar.