I think the answer is a. Osseuos
The Steering Nozzle can cause severe internal injuries
The lean to at ratio is more important than your BMI...Hope that helped! :)
A seesaw is an example of a first class lever The fulcrum, which is the part of the lever that does not move, is in the middle. The resistance, which is the weight (person) you are trying to lift is at one end. The effort, which is the force applied to the lever, is the person sitting on the other end.
D of course you need to focus on your patient not the things that come after not all your patients need surgery unless you spealize in it