The circulatory system comprises of the heart, the lungs and the  blood vessels. The main objective of the circulatory system is  transporting oxygenated (rich saturation of oxygen) blood around  the body.he  blood then travels to the left atrium by the pulmonary artery and  then to the left ventricle. The blood leaves the heart by the aorta  to the other parts of the body.. The circulatory system is the organ system that carries substances around our body. There is no such thing as a circulary system.
Homefacts City Report. Oak Park is located in Cook County, IL. The population is 51,949. There are 12 public schools in Oak Park with an average Homefacts rating of A. The total crime rate for Oak Park is moderate, and there are 15 registered sex offenders residing in the city. Unemployment in Oak Park is low and the median home sales price is $440,000.
Welcome to the Oak Park, Illinois Area! The historic setting of the Oak Park Area, just ten miles due west of downtown Chicago, offers the perfect place to combine business meetings with family leisure activities. If you are planning a training seminar, conference or tour package, Visit Oak Park offers many services to make your plans a reality.