Questions:
1. I was most surprised about how all the veins and arteries were weaving by each other and all in close corridors. It felt how I expected it to and was really cold, I was surprised with the amount of ice in the heart as well.
2. They are different because the atria are smaller and just pushing the blood down into the ventricles and in the ventricles it builds up and gets pumped out to where it has to go.
3. It is more muscular because it is getting oxygenized blood and it has to pump the blood out further.
4. The valves are suppose to control the blood flow in the heart and make sure no blood goes back up from where it came from. The structure is very strong because the chordae tendinae were able to provide control of the valves.
5. I have lost my pictures.
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