sliding filaments theory

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8 Terms

1
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Step 1

Signals from neurons reach the muscle (cell/fiber)

2
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Step 2

Neurotransmitters (AcH(acetylcholine)) is released from neuron & stimulates muscle activity

3
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Step 3

Action potential is initiated

4
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Step 4

Ca+ (calcium ions) are released from sarcoplasmic reticulum

5
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Step 5

Ca+ attatches to troponin on the actin (& moves tropomyosin because it blocks myosin from attatching to actin)

6
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Step 6

ATP attaches to myosin & lifts myosin heads to attach

7
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Step 7

Myosin attaches to actin & pulls actin towards the m-line

8
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Step 8

Repolorization occurs to allow for relaxation of the muscle