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What are three types of muscle fibers?

A.) smooth, intermediate-twitch, cardiac

B.) slow twitch, intermediate twitch, fast twitch

C.) smooth, cardiac, skeletal

D.) slow twitch, fast twitch, involuntary

Verified Answer :

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The Answer is C.

Type I - Slow Twitch

Type II - Fast Twitch Oxidative

Type III - Fast twitch Glycolytic

Answer:C)  slow twitch fibers.

           fast oxidative fibers.

fast glycolytic fibers.

   

Explanation:

Red / Slow (Type I fibers, 'slow twitch fibers')

Red / Fast (Type II fibers, 'fast oxidative fibers')

White / Fast (Type II fibers, 'fast glycolytic fibers')

Type I fibers are used for repeated contractions of low intensity like jogging, walking, bicycling.


Type II fibers are used in activity needing speed and strength like medium weight lifting and medium sprints.

Type II fibers are used in activity needing short bursts of speed and strength like heavy weight lifting and short sprints.

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