In the limbs we need some special terms. Gross anatomy - anything you can see and handle without a microscope. In a fracture bone ends overlap because of force applied by muscles. Outer casing of cortical bone acts like a bicycle frame. Inner trabecular bone is arranged along lines of force.
Calcified fibres run out into tendons.
Two articular surfaces - simple. Serial repetition of similar structures along body axis. Tissues close to the notochord segment. The mesoderm nearest notochord forms somites. Muscles to attach between vertebrae 2.