The bones of the body make up the skeletal system. The skeletal system performs such functions as locomotion, protection of delicate organs and gives shape to the body. The skeletal system is linked to the circulatory system because the red blood cells are produced in the bone marrow. Money circulation is needed for a healthy economy. That is circulation from the bank to the people and back to the bank.
Blood is pumped through arteries and veins to various parts of the body.
Blood carries oxygen to body tissues, waste substances for excretion, and food nutrients to body tissues. In addition, the white blood cells protect the body from diseases. The circulatory system is very important because the system serves as the main link between the other systems. The excretory system is simply the waste emptier. If biological waste is not excreted the body becomes uncomfortable, and these wastes if accumulated in the body in high amounts could become poisonous.