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The type of muscle fibers that are used to maintain posture in the back muscles are primarily a. oxidative. b. acetylcholine c. sarcomere. d. slow fibers.

The type of muscle fibers that are used to maintain posture in the back muscles are primarily a. oxidative. b. acetylcholine c. sarcomere. d. slow fibers.
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The type of muscle fibers that are used to maintain posture in the back muscles are primarily

a. oxidative.
b. acetylcholine
c. sarcomere.
d. slow fibers.

User Tiko
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1 Answer

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D. Slow fibers. These muscle fibers hold you in an erect position all day long.
User TAG
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