Skeletal and Muscular

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Across
  1. 1. Largest bone in the body
  2. 3. muscle in the anterior compartment of the thigh
  3. 4. Breast muscles
  4. 7. The topmost vertebrae group
  5. 8. Colloquially referred to as a kneecap
  6. 10. Core muscles referred to as 'abs'
  7. 13. Pair of the Tibialis Anterior
Down
  1. 2. Jaw bone
  2. 5. _____ tunnel syndrome
  3. 6. Muscle in the shoulder
  4. 9. A group of muscles on the Posterior side of the thighs
  5. 11. Pairs with the Bicep
  6. 12. In mythology, this guy had a weak tendon