This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Resting membrane potential is maintained due to 
Select and explain. 
A. K+, B. Na+, C. Mg++, D. Cl-
A: K+
Answer: A: K+ 
Explanation: K+ is responsible for resting membrane potential It diffuses passively across the k+ channal from high to low concentration Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:34,35,36