The importance of calcium and phosphorus in human body

I read this information from PRE-U TEXT STPM BILOLOGY, there are many important of calcuim and phosphorus in human body:
Calcium is important in teeth and bone formation. The skeleton gives support and shape to the body. It provides attachment for muscle to enable movement. Besides that it important in blood clotting, nerve trasmission across the synapse, muscle contraction and intracelullar signalling.
For phosporus, it important in bone formation, components of phospolipids needed to form cell surface membranes and membranes of organelles. It also components of nucleic acids, DNA carries genetic information, RNA in protein synthesis. Beside that, it also components of ATP and ADP needed in energy transfer.