You'd eventually die because your most important muscle, the heart, would fail without potassium.
the main organ of the muscular system is the muscles
The main organ in the muscular system is the muscles.
The Muscular-Skeletal System.
An organ.
The nervous system.
The main organ in the muscular system is the muscles.
muscular system
the muscles
The skeletal system is the organ system that works most closely with the muscular system.
muscular system
Muscular Body system
muscular system ^-^