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10:24
YouTube
CrashCourse
Muscles, Part 1 - Muscle Cells: Crash Course Anatomy & Physiology #21
We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the sliding filament model. Your skeletal muscles are constructed like a rope made of bundles of protein fibers ...
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