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1. The case is embalmed. What looks different as a result?
 
 
2. Why is there scarring in the chest?
 
 
3. Can you identify one of the bypass grafts? Is it patent?
 
 
4. At 00:55, wires are exposed. What does this tell you about any prior procedure? What can you infer about which vessel this is? Where would you expect the wires to attach distally and proximally?