The cardiovascular system contains a functional heart (50 parts) with "insight" and detailedly modeled valves, other interiors and coronaries. The veins and arteries of the head and body however consist of only two (closed) parts, which is essential for easy animation, it is as detailed as is reasonable and has 145.000 polygons. Set fits very nicely and without interference, to the skeleton, muscles and all other parts P1.
