Human Body Systems: Enzymes, Electrolytes & Metabolism

Body systems rely on a balance of electrolytes, enzymes, and hormones like cortisol. Understand fat metabolism, urinary output, and energy system functions.

Doctor reading documents while holding a test tube

What Is a Good Calcium Blood Level?

Published Aug,14 2017 | By Sharon Perkins

Bones might be the first thing that comes to mind when you think of calcium, but calcium performs other tasks in the body besides building strong bones. Calcium also helps transmit nerve impulses and regulate muscle contractions.