TY - BOOK ED - World Book, Inc. TI - The skeletal system/the muscular system T2 - World Book's human body works SN - 0716644266 AV - QM101 .S54 2007 U1 - 611/.71 22 PY - 2007/// CY - Chicago PB - World Book KW - Human skeleton KW - Juvenile literature KW - Musculoskeletal system N1 - Includes bibliographical references (p. 47) and index; Why do we move? -- What gives the body its shape? -- Skull and backbone -- Legs and arms -- Inside a bone -- Blood and bone -- Changing bones -- Connected bones -- More about joints -- Damage and repair -- Turning energy into action -- How do muscles work? -- Striped and smooth -- Ligaments and tendons -- Matching pairs -- Other muscle jobs -- Reflexes -- Balance and coordination -- Exercise -- Slowing down -- Caring for bones and muscles ER -