Question

Explain what was happening during the “Fatigue Squeeze” activity in the motor neurons and muscle fibers when you first started, compared to the end, using terms from this chapter (muscle systems and tissue). Focus on the motor neuron – muscle fiber connection, not the biochemistry of fatigue.
The fatigue squeeze activity was squeezing an item as hard as i can for as long as possible, noticing when fatigue started to set in.

Answer 1

In fatigue squeeze we squeeze a ball very hard fir as ling as we can . So when we start our muscle is relaxed and neurons are also normally giving potentials but when we start the neuron releases Ach to muscle fibre causing twitch with many twitch makes a complete contraction now as the contraction is completed the muscles fibres have sufficient oxygen fir some time so it works greatly without pain and little bit of neurons activity to force the work but after some time when muscle fibres get tired cause of loss of ATP and no oxygen lactic acid formation occur causing pain in the arm and to still squeeze the neurons have to release neurotransmitters again and again so that the work can be done . So in other way muscle fibres and neurons gets exhausted