Which of the Following Is Not Involved in the Relaxation

question 55

Multiple Choice

Which of the following is not involved in the relaxation of muscle?

• A) synthesis of ACh by acetylcholinesterase
• B) initiation of action potentials
• C) the troponin-tropomyosin complex slipping back into its blocking position
• D) detachment of actin from tropomyosin
• E) T tubules actively absorbing Ca²⁺

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