The resting membrane potential of a skeletal muscle fiber is primarily maintained by the unequal distribution of which ions?
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Correct answer: Na+ and K+
Like neurons, muscle fibers utilize the Sodium-Potassium pump to maintain a high concentration of K+ inside and Na+ outside. This creates an electrochemical gradient essential for excitability.
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More Muscle Physiology: Contraction Mechanisms questions
- What is the function of the protein 'Titin' in the sarcomere?
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