Depending on your career options, the skeletal system can be a very crucial part of daily responsibilities at work. For example, one that studied sports or physical therapy will have to know everything about the body and its internal mechanisms in order to determine the best course of action in the case of injuries of any kind or accidents. It is not just doctors that need to know such things and in an ever increasing world of initiative and capitalism self-education can prove very helpful in moving on to new career options or simply knowing what to do in an emergency situation.