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Muscles, part 2 - Organismal Level: Crash Course A&P

By Owner-Powered by BoclipsFrom boclips.com.old
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Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle twitches, and how the strength and frequency of an impulse affects the strength and duration of a contraction.

Tags

Origin
Agonist
Myofibril
Movement
Involuntary
Coordination
Force
Cardiac
Muscles
Insertion
Flexion
Voluntary
Contraction
Skeletal
Sarcomere
Tendons
Extension
Smooth
Antagonist
Ligaments

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