Sliding filament theory
- Created by: tumblrgirl96
- Created on: 04-05-15 18:19
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- Sliding Filament theory
- Nerve impulse arrives at neuromuscular junction
- Calcium ions released from sarcoplasmic reticulum
- Calcium ions diffuse through the sarcoplasm
- Calcium ions attach to the troponin, causing it to move
- Untitled
- Tropomyosin shifts
- Myosin binding site exposed
- Myosin heads bind with binding site
- Cross bridges form
- Myosin head bind to actin
- ADP and Pi released from myosin head
- Myosin changes shape
- Myosin head nods forward
- Filaments move
- Actin moves over myosin
- Filaments move
- ATP binds to myosin head
- Myosin head detaches
- ATPase on myosin head hyrolyses ATP
- ADP and Pi formed
- Myosin head changes shape
- Returns to upright position
- Cycle starts again
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