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As we all know, bones are living, functioning organs, just like the other organs of the body. Bones require oxygen and glucose in order to produce energy and the metabolic products (red blood cells, endogenous factors of the immune system, etc.) unique to this system.
The supply of oxygen and glucose is derived through blood vessels, which are distributed from the hard structure of the bone cortex through the softer skeletal centers.
In each of the long bones (tibia, femur) there are a number of openings through which arteries enter the bone, as well as a number of openings where veins exit the bone, which serve to drain the blood back into the vascular system. Most of these openings are concentrated in the area called the Epiphysis, located in the upper part or endpoint of the bone (the joint area). Another feature of the Epiphysis is that the cortex tissue in this area is usually thinner than in the main part of the bone.
