Which Statement Concerning in Twitch Summation Is Correct

question 277

Multiple Choice

Which statement concerning in twitch summation is correct?

• A) The muscle fibre is stimulated again before the action potential has returned to resting potential.
• B) The muscle fibre is stimulated again before the filaments have completely returned to their resting position.
• C) Stronger muscle contractions occur with stronger action potentials.
• D) Weaker muscle contractions in spite of stronger action potentials.

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