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Due to system maintenance, CK-12 will be unavailable on Friday,8/19/2016 from 6:00p.m to 10:00p.m. PT.

Skeletal Muscles

Skeletal muscles are comprised bundles of muscle fibers. Muscles can only contract and must work in pairs.

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Muscular System Study Guide
Student Contributed
This study guide reviews the three types of muscles (skeletal, cardiac, smooth) and muscle contraction (sliding filament theory).
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