Multiple choice general knowledge science & technology How many different types of bones are there, in terms of their shape? 54 10 4 17 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Bones are classified into four types by shape: long bones (femur, humerus), short bones (carpals, tarsals), flat bones (skull, sternum), and irregular bones (vertebrae, pelvis). This classification is based on shape, not function.