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Explain the following using your knowledge of muscle contractions. How is it possible that we can...

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Medical Sciences

Explain the following using your knowledge of muscle contractions.How is it possible that we can delicately pick up a flower, yet thesame muscles can squeeze/crush a pop can? You should discuss motorunits/neurons, muscle fibres, frequency (of motor neurons firing =fibre contraction) and the All-or-None Principle.

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Muscle contraction occurs when the stimulus reach the neuromuscular junction via neuron Then acetylcholine is released into the synaptic cleft The acetylcholine binds to the receptors in the motor end plate which opens the voltage gated Calcium channels The Ca2 influx occurs to the sarcoplasmic reticulum which binds to the troponin and removes the    See Answer
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