Characteristics of Bone ShapesOnline version Match the definition with the correct answer. by Madison Fowler 1 Long Bones 2 Short Bones 3 Irregular Bones 4 Flat bones 5 Sesamoid Bones Made mostly of compact tissue, contain some spongy bone in the diaphysis. These bones have a long shaft. Act as levers for the skeletal muscle to act upon. Fibula, tibia, femur, humerus, radius, ulna Typically equal in size and length Mostly composed of spongy bone, with a thin layer of compact bone surrounding it. Allow small amounts of movement when articulated together. Carpals and tarsals Classified as elaborate and different variety of shapes Usually have projections for attachments. Sphenoid, ethmoid, sacrum, hyoid Composed of compact bone with a layer of spongy bone in between. Protect the soft internal structures of the brain. Ribs, temporal bones, occipital bone, parietal bone, scapula, sternum. Formed with tendons Patella Protect tendons.