Slow extrafusal muscle fibers are _____________________.
 | |
 |
abundant in marathon runners; |
 |
abundant in short distance sprint runners; |
 |
quick to fatigue; |
 |
both alternatives a and c are correct; |
 |
both alternatives b and c are correct; |
INCORRECT - Slow extrafusal fibers are not quick to fatigue and they are not abundant in short distance sprint runners.
[Review Part 1 of the tutorial] [Review Part 2 (Matching) of the tutorial]