By John Johnson Science Ms.Dinh Grade 7

It allows you to move It protects some organs Bones are responsible for making blood cells Bones store minerals

The skeletal system interacts with the muscular system It does so by pressing against your muscles when you wish to move It also protects the respiratory system

Certain parts of the system protect organs Your skull protects your brain Ribs protect your lungs and heart The pelvic girdle protects your reproductive systems

The most important organs are the skull, ribs and patella's The skull holds the shape of your face and protects the brain The ribs protect your heart and lungs The patella's help hold your legs and arms together

Joints are parts that connect pieces of your bones The hinge joint connects elbows, fingers and knees The ball-and-socket joint connects shoulders and hips The pivot joint connects the knees, neck and forearms

Bones are soft when people are young Blood cells are made in bone marrow Drinking milk will help prevent osteoporosis when your older There are more bones in your hands and feet than the rest of your body

Bones allow you to move Protect your soft organs Make blood cells

The pivot joint= EXECEL Rehabilitation services Diagram and ball-and-socket= Skeletal system= Muscle system= Brain in skull= Independent bone parts= “Life Science”, Holt, Rinehart and Winston, other/ other/ two/ two/