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Lesson 5.2 Review and Assessment
Know and Understand
Explain the role of acetylcholine in muscle contractions.
Describe the parts of a motor unit.
Discuss the differences between a large and small motor unit and their functions.
Describe parallel and pennate fiber patterns.
Analyze and Apply
Which fiber types do you think contribute to each of the following: muscular strength, power, and endurance? Explain your reasoning.
What would happen if you had no Na+ in your body? no Ca++?
Why do temperature and humidity increase the rate of muscle fatigue?
Do you think a soccer player has more fast-twitch or slow-twitch muscle fibers? Why?
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