Crossword on anatomy of the nail

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Across
  1. 3. Skin where the nail plate and bed separate
  2. 6. Skin at side of free edge
  3. 7. Skin covering the matrix
  4. 8. Skin both sides of the nail plate
  5. 9. End of the nail plate
Down
  1. 1. Overlapping skin surrounding nail
  2. 2. Half moon shaped point at base of nail
  3. 4. Visible part of the nail that sits on nail bed
  4. 5. Only living part of the nail