6.3: Introduction to Bone Last updated Save as PDF Page ID 7148 6.3A: Gross Anatomy All the bones in the body can be described as long bones or flat bones. 6.3B: Supply of Blood and Nerves to Bone The blood and nerve supply to bones are carried in Haversian canals that run along the long axis of bones. 6.3C: Microscopic Anatomy of Bone The basic microscopic unit of bone is an osteon, which can be arranged into woven bone or lamellar bone. 6.3D: Chemical Composition of Bone Acid-base imbalances, including metabolic acidosis and alkalosis, can produce severe, even life-threatening medical conditions.