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question 15 ________ fibers contract and relax the quickest. ○ fast ○ p…

Question

question 15
________ fibers contract and relax the quickest.
○ fast
○ posterior
○ slow
○ anterior

Explanation:

Brief Explanations

Muscle fibers are classified by contraction speed. Fast - twitch fibers contract and relax more rapidly compared to slow - twitch fibers. Anterior and posterior refer to positions, not fiber contraction speed characteristics.

Answer:

A. Fast