SKELETAL SYSTEM

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Across
  1. 2. IS THE HEAVIEST AND STRONGEST BONE IN THE HUMAN BODY
  2. 4. PRESENT IN THE LOWER PART OF THE TRUNK
  3. 6. CONSISTS OF 33 RINGS
  4. 7. HELPS IN ROTATION OF THE ARM
Down
  1. 1. SINGLE.LONG BONE IN THE UPPER ARM
  2. 3. SAFEGUARDING OF THE HEART AND LUNGS
  3. 5. SYNONONMS ARE DEATH-HEAD, BRAINCASE, SCALP