The concentration of Ca2+ in the myoplasm can increase as much as 10,000 fold in response to a motor nerve impulse.

Name: The concentration of Ca2+ in the myoplasm can increase as much as 10,000 fold in response to a motor nerve impulse.
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The release of Ca2+ from the sarcoplasmic reticulum in response to a motor nerve impulse can increase the concentration of Ca2+ in the myoplasm by as much as 10,000 fold, allowing for muscle contraction to occur.

The Concentration of Ca2+ in the Myoplasm Can Increase as Much