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Muscles shorten when the thin(actin) and thick(myosin) filaments slide past each other, pulling on the muscle ends
Sliding Filament Model
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Response that occurs completely or not at all, such as a neuron generating an action potential in response to a stimulus of threshold strength
All-Or-None Response
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The bond between the globular head of a myosin molecule and actin filament, repeatedly formed during muscle contraction to draw it into a band of sarcomere
Cross-Bridges
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Process of converting an electrical stimulus to a mechanical response
Excitation Contraction
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Decline in ability of a muscle to generate force
Muscle Fatigue
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Enzyme that transfers the energy stored in terminal phosphate bonds of ATP molecules
ATPase
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Enzyme that catalyzes breakdown of acetylcholine
Acetylcholinesterase
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