Be used when confidential documents, like patient records, must be destroyed
If i understood your question right, the cars going straight have to keep going until the red light. but people going either left or right, have to slow down for the other people on the other side of the intersection to cross going either left or right.
Insulin is secreted into the bloodstream and flows to its target cell the liver.
Quad Stretches i think because, they support his feet if they give out he's gonna fall and he needs to wake them up and make them work out.