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Lesson 2

Lesson 2: Movement in Plants and Muscle Contraction Mechanics in Humans

Lesson parts

2.1 Movement in living organismsMovement in living organisms2.1

2.2 Movement in plantsMovement in plants2.2

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2.3 Systems that cooperate in movementSystems that cooperate in movement2.3

2.4 The muscular systemThe muscular system2.4

2.5 Structure of a skeletal muscleStructure of a skeletal muscle2.5

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2.6 How the nerve impulse reaches the muscleHow the nerve impulse reaches the muscle2.6

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2.7 The sliding-filament theory of muscle contraction (Huxley)The sliding-filament theory of muscle contraction (Huxley)2.7

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2.8 Muscle fatigue and crampMuscle fatigue and cramp2.8

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2.9 Summary of coordination in movementSummary of coordination in movement2.9

2.10 Comparison: voluntary and involuntary musclesComparison: voluntary and involuntary muscles2.10

2.11 Key termsKey terms2.11

2.12 Practical tips for answering exam questionsPractical tips for answering exam questions2.12