The word "circulatory" refers to something related to the circulation or movement of fluids within a system, particularly in the context of the human body's blood circulation. Full definition
Systemic formation and functioning has not yet started but in the beginning of next week, the development of circulatory system usually starts. (doctor-info.website)
Varicose veins appear as a result of circulatory problems. (compressioncarl.com)
Heart treatment: given in early pregnancy, (to help it cope with the mother's increase in circulatory blood volume), and before delivery (as the cardiac muscle will have to work quite hard during the birth process). (gentlebirthmethod.com)