Which electrolyte plays a crucial role in maintaining the resting membrane potential of neurons and is essential for the transmission of nerve impulses?

A Sodium
B Potassium ✓
C Calcium
D Magnesium

Explanation

Potassium is the primary electrolyte responsible for maintaining the resting membrane potential of neurons and is essential for the transmission of nerve impulses.

Mnemonic

POTASSIUM = Powering Optimal Transmission And Signaling, Safely Initiating Umpteen Movements

Source

Berne and Levy Physiology
Electrolytes and Acid-Base Balance Physiology Electrolyte Function Medium MEDICAL Confidence: high