#2655 4-Piece Vein

635.jpg
635.jpg
638.jpg
636.jpg
637.jpg

Listing Details

Model Size
4.25"x1.25"x1.875"
Card Size
6.5"x5.25
Base Size
No Base
The first section of this model shows a vein cross section with its valves open. Here blood is able to pass through the valves to continue on its way back to the heart. The second section of this model shows a vein cross section with its valves closed. Here blood is prevented from passing through the valve in the incorrect direction. The third section of this model shows a vein cross section with its valves open and the start of blood pooling on the valves. The fourth section of this model shows a vein cross section with its valves open and a severe blood clot.