Answer:
I think it is :
A) To move air toward the lungs while warming, moistening, and filtering it.
I don’t think you’re looking for a part but I believe you’re looking for blood, more specifically the red blood cells
It's a pretty common symbol, mostly in the U.S. How ever it is two snakes with a set of wings, this stands for medicine instead of the correct rod of asclepius. I hope in some way this helps.
Economic influences I believe
