Relacionar Columnas Skeletal SystemVersión en línea Match the following por Ms. Burton 1 The hardness of bones is called ____________ 2 Bones are made out of ? 3 The ribs 4 The spine 5 The skull Protect the heart, lungs, and other organs in the chest cavity. Protects the brain and forms the shape of the face. Crystals of Calcium Made up of vertebrate that support and protect the spinal cord. Different kinds of tissues/