Online worksheet ยท 3 of 4
A muscle pulls when it contracts - Online practice 3
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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Simplified elbow model: bringing a hand towards the shoulder. For this exercise, bending is represented by biceps contraction with triceps relaxing; straightening by the opposite action. A contracting muscle pulls through tendons attached to bones, not by actively pushing. Real movement also involves coordination, loads and other muscles; this model is not an exercise prescription.
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