Slow-Twitch Muscle Fibers

question 14

Multiple Choice

Slow-twitch muscle fibers

• A) are the predominant type of muscle fibers in the upper limbs.
• B) have a richer blood supply than fast twitch fibers, and contain myoglobin.
• C) would be used for activities resulting in (or requiring) anaerobic respiration.
• D) fatigue more easily than fast-twitch fibers.
• E) have all of these characteristics.

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