can you give me facts on the circultory system

Question

Im am working on a class project about the circulatory system and i need to write a summary on it.

Answer 1

http://biologyquestions.org/785/which-stuctures-in-the-human-heart-are-classified-arteries

That is another question that gives some good details.  It shows the path the blood follows through the heart to the lungs, back to the heart and out to the tissues and then back to the heart again.