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Skeletal System Study Guide
3 Jobs of the Bones
1. Bones support the body.
2. Bones give the body shape.
3. Bones protect organs.
2 Ways to Keep Bones Healthy
1. Drink milk for vitamin D and calcium.
2. Get lots of exercise.
Number of Bones in the Body
A baby’s body has 350 bones.
An adult’s body has 206 bones.
Cranium or Skull
Protects the brain.
Rib cage
Protects the heart and lungs.
Pelvis or Hip Bone
Femur or Thigh Bone
Radius or Arm Bone
Tibia or Leg Bone