Completar frases Lola 30/01Versión en línea Lola 30/01 por María Romera 1 Adulthood trunk Old heart Childhood age Adolescence spine brain refers to the first eleven or twelve years of life , Our body grow quickly . We learn to walk , talk and control our bodies . occurs from thirteen to nineteen years of age , Our body finishes growing : people from twenty to seventy years of age . We go to work and continue learning and gaining experience . starts at about seventy years of age . Our bodies and minds feel a bit tired . We are living the last stage of our lives . Groups of bones are the vertebrae , the skull and the rib cage . The vertebrae are a group of small bones . They form the . The group of bones that form the skull protect the The rib cage protects the organs in the torso or . There are also muscles that are not attached to bones . They have other roles . For example , the is a muscle that pumps blood .