circulatory system

We are going to learn more about the circulatory system today.

First let's see how the heart and lungs work together in real time:
http://www.smm.org/heart/heart/circ.htm

Another visual of what happens in our heart:
http://www.smm.org/heart/heart/pumping.htm

Let's look inside the heart:
http://www.kscience.co.uk/animations/heart.swf

Confused?? Read about it step by step:
http://www.pbs.org/wgbh/nova/body/map-human-heart.html

Now, lets listen to what kidshealth.com has to say:
http://kidshealth.org/PageManager.jsp?lic=1&article_set=59298&cat_id=20607

Some reading wouldn't hurt:
http://kidshealth.org/PageManager.jsp?lic=1&article_set=54036&cat_id=20607

Finally, Try the quiz:
http://kidshealth.org/PageManager.jsp?lic=1&article_set=59357&cat_id=20607