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responses to exercise - Coggle Diagram
responses to exercise
neuromuscular
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muscle fibres
Muscles contract and relax due to muscle filaments moving backwards and forwards across each other. What causes these backwards and forwards movements to occur is the actions of specialised nerve cells called motor units working at a neuromuscular junction.
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muscle spindles
proprietors found in skeletal muscles within muscle fibres, known as intrafusal fibres
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endocrine system
adrenaline is secreted
increases:
- heart rate
- breathing rate
- metabolic rate
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