Bones are classified by their shape. They may be long (like the femur and forearm), short (like the wrist and ankle), flat (like the skull), or irregular (like the spine). Primarily, they are referred to as long or short.

Context Explanation

There are 206 bones in the adult human skeleton. Each bone has two types of bone tissue to ensure strength: The dense, hard outer layer is called compact or cortical bone while the inner, less dense, lattice-like bone is called cancellous, trabecular or spongy bone that is surrounded by bone marrow. About 80% of the bone in your body is compact. It makes up the outer layer of the bone and also helps protect the more fragile layers inside.

Insight Material

If you were to look at a piece of compact bone without the help of a microscope, it would seem to be completely solid all the way through. MSN: What are bone spurs? All about the health condition Donald Trump was diagnosed with Back in 1968, President Donald Trump received a deferment from serving in the Vietnam War due to bones spurs. While Trump himself claims he doesn't remember the details of who gave him this diagnosis, ... What are bone spurs?

Final Conclusion

All about the health condition Donald Trump was diagnosed with