https://galen.st-andrews.ac.uk/resources/35907/file
https://meded.lwwhealthlibrary.com/book.aspx?bookid=780
The resting membrane potential of a cell is defined as the electrical potential difference across the plasma membrane when the cell is in a non-excited state.
Resting membrane potentials are maintained by different types of ion channels like the sodium-potassium pump and leak channels. Sodium potassium pump transports 3 Na+ outwards for 2 K+ into the cell. (REM TOOKIN)