In case you don't know what Calcium Is:
a silver-white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element in nerve conduction, heartbeat, muscle contraction, and many other physiological functions.
Calcium can be found:
Calcium is a soft white chemical element found in bones and teeth
answer:
Using the definition..calcium may be used in the human body by nerve conduction, heartbeat, muscle contraction, and many other physiological functions.
·.•·°.hope this helped!!!·.•·°.