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