After you've tried the explore activity on p. 625 of your textbook, check out some of these links that can
You can use the first two links to locate the circulatory system and then figure out how blood moves inside of it.
Gross Anatomy : Use the section on cardiovascular system
Blood Cells
Smaples of oxygenated and de-oxygenated blood
These animations go along with the pictures in section 23.1
Simple Animation of Heart Pumping
Systemic Cirulation
Blood cells moving through capillaries
When they open your heart for surgery, they have to use one of these.
A heart-lung machine
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