What is the difference between private insurance and managed care

Private insurance is an insurance protection provided by non-governmental sources such as private insurance companies.
Managed care is a type of private medical insurance in which patients agree to visit only certain doctors and hospitals, and in which the cost of treatment is monitored by a managing company. Certain health care providers and facilities,  are part of the plan's network.
The difference is that in non managed private insurance the patient can choose in which hospital he will go and in managed insurance there are only several hospitals in which he can go.