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Questions and Answers
What is the phenomenon called when the strength of contraction of a muscle increases to a plateau?
What is the phenomenon called when the strength of contraction of a muscle increases to a plateau?
- Contraction failure effect or slump
- Plateau effect or steppe
- Staircase effect or treppe (correct)
- Muscle twitch effect or spasm
What is believed to be the primary cause of the staircase effect?
What is believed to be the primary cause of the staircase effect?
- Increasing sodium ions in the cytosol
- Decreasing calcium ions in the cytosol
- Decreasing sodium ions in the cytosol
- Increasing calcium ions in the cytosol (correct)
What is the initial strength of contraction of a muscle after a long period of rest compared to its strength 10 to 50 muscle twitches later?
What is the initial strength of contraction of a muscle after a long period of rest compared to its strength 10 to 50 muscle twitches later?
- Double
- Triple
- Half (correct)
- Same
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