Relier Pairs Anatomy Activity 4 Version en ligne Identify the characteristics of the five shapes used in the classification of bones. par Neil Blue 1 2 3 4 5 Irregular Bone- complex shapes and allows flexibility Sesamoid Bones- bones that help reinforce tendons Flat bones- Main function is to protect internal organs Long Bones- Support weight and facilitate movement Short Bones- small cube shaped bones found in hands and feet