This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Resting membrane potential of muscle fibre is 
Select and explain. 
A. -60mv, B. -70mv, C. -80mv, D. -90mv
D: -90mv
Answer: D: -90mv 
Explanation: The resting membrane potential of skeletal muscle is about –90 mV. The action potential lasts 2 to 4 ms and is conducted along the muscle fiber at about 5 m/s.
Ganong 23 rd ed, pg 96