Which of These Statements Correctly Describes Twitch Summation

question 193

Multiple Choice

Which of these statements correctly describes twitch summation?

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

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