Electrolytes are charged ions dissolved in body fluids. They drive nerve signals, muscle contraction, and fluid balance — so their levels are tightly controlled. Tap each.
Sodium
Na⁺
Electrolytesthe charged ions
The major ions
📷 Reference image
A real labeled figure to compare with the interactive above.
Electrolytes — OpenStax, CC BY 3.0 (via Wikimedia Commons)