Long – A bone that is longer than its width, such as the femur, humerus, ulna, radius, tibia, fibula, metacarpals, metatarsals, and phalanges. Short – A bone that is wider than its length, such as the carpals and tarsals. Flat – A bone that has a flat surface i.e the cranium, sternum, pelvis and scapula. Irregular – A bone that has an irregular shape i.e the bones of the vertebrae and face. Sesamoid – A bone that is seed shaped i.e the patella. Now you can assess your understanding of this section via this link HERE.