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Summary A Level Biology - Muscles Notes £2.99
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Summary A Level Biology - Muscles Notes

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Detailed and comprehensive notes on muscles (Edexcel biology A). Covers muscles, skeletal muscle, muscle fibres, sliding filament theory and myfilament structure. [“A-Level Biology: Edexcel A Year 1 & 2 Complete Revision & Practice” (CGP, ISBN: 2986), “Salters-Nuffield AS/A level Biology Stud...

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  • June 13, 2023
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  • 2021/2022
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Muscles and Movement
7.1 Know the way in which muscles, tendons, the skeleton and ligaments interact to enable movement,
including antagonistic muscle pairs, extensors and flexors.

Joint Structure




Skeletal Muscle
7.1 Know the way in which muscles, tendons, the skeleton and ligaments interact to enable movement,
including antagonistic muscle pairs, extensors and flexors.

• Skeletal Muscle (Striated Muscle): The type of muscle attached to the bones by tendons for
movement.

• Flexor: A muscle that bends a joint when it contracts, e.g. biceps.
• Extensor: A muscle that straightens a joint when it contracts, e.g. triceps.

• Antagonistic Pair: Two muscles that work together to move a bone to and fro.
• Muscles work in pairs because they can only pull (when they contract) – they cannot push.




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