Main Question or Discussion Point
I have never really thought why an air embolus can restrict the passage of blood, until now, and I don't really understand. Why can't the circulation pressure just push the air embolus forward until it is eventually expelled in the lungs? Or why can't it dissolve the embolus? In a plant is easier the see why it is a problem, there is not a push, but a pull, due to transpiration, the presence of an embolus will interfere with the cohesion attraction that makes possible the transpiration pull. But in blood circulation I am not seeing why is a problem.