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Questions and Answers
What happens to Ca2+ ions after they initiate muscle contraction?
What happens to Ca2+ ions after they initiate muscle contraction?
- They are released into the bloodstream
- They are pumped back into the SR for storage (correct)
- They bind to troponin again
- They bind to actin
What type of muscle contraction occurs when a muscle changes its length?
What type of muscle contraction occurs when a muscle changes its length?
- Isometric contraction
- Concentric contraction
- Isotonic contraction (correct)
- Eccentric contraction
What is the term for the type of muscle contraction where the muscle shortens as it contracts?
What is the term for the type of muscle contraction where the muscle shortens as it contracts?
- Isometric contraction
- Concentric contraction (correct)
- Eccentric contraction
- Isotonic contraction
What is the opposite type of contraction to concentric contraction?
What is the opposite type of contraction to concentric contraction?
What is the primary function of Ca2+ ions in muscle contraction?
What is the primary function of Ca2+ ions in muscle contraction?
What type of contraction occurs when a muscle contracts without changing its length?
What type of contraction occurs when a muscle contracts without changing its length?
What is the result of summated Ca sparks in muscle contraction?
What is the result of summated Ca sparks in muscle contraction?
What happens to the muscle during relaxation?
What happens to the muscle during relaxation?
What is the term for the type of contraction that occurs when lifting a weight?
What is the term for the type of contraction that occurs when lifting a weight?
What is the term for the type of contraction that occurs when lowering a weight?
What is the term for the type of contraction that occurs when lowering a weight?
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