Skeletal system

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Across
  1. 2. bone that connects your arm to your body
  2. 6. the bone at the front of your knee joint
  3. 7. protects your organs in your chest, your heart, and lungs
  4. 8. shaped roughly like a cube and contains mostly spongy bones
Down
  1. 1. what connects the knee and ankle
  2. 3. used to grip and hold onto objects, found in the fingers and toes
  3. 4. longest bone in the body
  4. 5. where red blood cells being formed