Another system that has connection to the circulatory is the urinary system(excretory). This happens in the kidneys. Blood from your heart goes to the kidneys through the aorta. The kidneys filter the blood and then sends it back to the heart in a vein called the vena cava.
The digestive system is the last connection to the circulatory system. In the small intestines, the nutrients are absorbed from the bolus using the villi. The nutrients go into the blood stream and is then, transported around the body.