Which ions are important in maintaining the membrane potential of the neurons?
A) sodium and chloride
B) potassium and calcium
C) sodium and potassium
D) magnesium and calcium
E) none of these

Question

Quizplus · Accepted Answer

The membrane potential of neurons is maintained by the electrochemical gradient of ions, specifically sodium and potassium. Sodium ions (Na+) have a higher concentration outside of the cell, while potassium ions (K+) have a higher concentration inside the cell. The selective permeability of the neuronal membrane to these ions, through specific ion channels, allows for a separation of charge which creates the membrane potential. Sodium-potassium ATPase pumps are responsible for maintaining the concentration gradient of these ions, which is crucial for proper neuronal function.

Which Ions Are Important in Maintaining the Membrane Potential of the Neurons