Bones in the body

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Across
  1. 1. The bone structure that supports the spinal column and legs (6 letters).
  2. 4. One of the long bones in the foot (10 letters).
  3. 6. One of the small bones that make up the spine (8 letters).
  4. 7. The part of the skull that encloses the brain (7 letters).
  5. 8. One of the curved bones that protect the chest cavity (3 letters).
Down
  1. 1. The small bone in front of the knee joint, also known as the kneecap (7 letters).
  2. 2. The longest bone in the human body, found in the thigh (5 letters).
  3. 3. The bones in the fingers and toes (9 letters).
  4. 5. The larger bone in the lower leg, also known as the shinbone (5 letters).