Relacionar Columnas Skeletal SystemVersión en línea Match the following por Ms. Burton 1 The ribs 2 The hardness of bones is called ____________ 3 The spine 4 The skull 5 Bones are made out of ? Protect the heart, lungs, and other organs in the chest cavity. 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. Crystals of Calcium