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18 Cards in this Set
- Front
- Back
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What is the agonist or prime mover? |
A muscle that acts dirextly to bring about desired movement |
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What is the synergist or assistant mover? |
A muscle that acts I directly to bring about desired muscle movement |
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Antagonist |
A muscle responsible for opposing the concentric muscle action of the agonist |
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Stabilizer |
A muscle responsible for stabilizing the adjacent segment |
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Neutralizer |
A muscle that acts to stabilize unwanted movement |
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What is eccentric? |
The strongest muscular actions |
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What is concentric? |
The weakest muscular action |
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What are the 3 different skeletal muscle types? |
Type 1, type 2a and type 2b |
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Type 1 muscle fibers |
Red, slow twitch, aerobic fibers best for endurance |
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What are type 2A fibers? |
Pink, moderately fast twitch best for moderate levels of strength exercises |
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What are type 2b muscle fibers? |
White, fast twitch, anaerobic fibers |
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What is the structure of the motor unit? |
A motor neuron that and all the muscle fibers it activates |
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What is sliding filament theory? |
When filaments slide over each other, shortening together, causing the muscle to contract as a whole |
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What are the 3 layers of fascia? |
Endomysium, perimysisium, epimysium |
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What is the outermost layer of a muscle called? |
Endomysium |
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A bundle of muscle fibers is called? |
Periysium |
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The layer that surrounds the muscle fibers |
Endomysium |
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What is the difference between smooth, skeletal and cardiac muscle? |
Smooth and cardiac is involuntary, skeletal is not |
