NUTRIENTS INVOLVED IN HARD TISSUE DEVELOPMENT

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Across
  1. 3. what are the two main types of hard tissue?
  2. 5. what is required for the formation of the matrix in bones and teeth and to control calcium movement in and out of bones?
  3. 6. how many bones are there in a human body?
Down
  1. 1. what is required to form a collagen matrix which is the foundation of hard tissue?
  2. 2. what plays a crucial role in maintaining levels of calcium in the blood?
  3. 3. what structures are involved in the skeleton?
  4. 4. what acts in cooperation with phosphorus to build, harden and maintain bones and teeth?