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