★ Muscle Anatomy Quiz
____________ attaches to actin to form the cross bridge.
A. Troponin
B. Tropomyosin
C. Myosin
D. Calcium
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Ca2+ will be released from the sarcoplasmic reticulum when
A. impulse reaches neuromuscular junction
B. impulse transmitted along T tubule
C. ATP binds to sarcoplasmic reticulum
D. acetyl choline binds to ligand gated ion channels
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