Assertion: calcium | /r/ObjectUse | used in many functions
Facets:
value: for activity
type: PURPOSE
Source sentences:
text: Calcium is used in many functions: muscle contraction, heartbeat regulation, nerve impulse conduction, neurotransmitters, cardiovascular system, cell division, healthy immune function, the production of saliva, and enzyme activity and for the production and activity of hormones involved in digestion, energy and fat metabolism.