The action potential traveling down the T tubule causes the sarcoplasmic reticulum to release ____ ions into the fluids surrounding the myofibrils.
A) sodium
B) potassium
C) chloride
D) calcium
Correct Answer:
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Q18: The dark bands of skeletal muscle are
Q19: When lifting a weight, muscles become shorter
Q20: Which type of striated muscle is controlled
Q21: Muscle cells have positively charged _ ions
Q22: The area between two adjacent Z lines
Q24: The flexor digitorum muscles flex the _.
A)
Q25: A decrease in muscle bulk due to
Q26: All of the muscle cells or fibers
Q27: The extensor digitorum communis muscle extends the
Q28: Also known as Lou Gehrig's disease, _
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