8. Beginning with an action potential in an alpha motor neuron, describe the sequence of events that leads to the shortening of a muscle fiber? Be detailed and describe in detail IN YOUR OWN WORDS! Ex. 7.2: Electromyogram (EMG) (from p. 7.3-7.4) 9. Sketch the EMG activity of the BICEPS when you increased the weight. • Don't forget to include the number of pounds (lbs) you used for the light and heavy weight. 10. a) What is the direct source of the electrical activity that you see for the EMG?
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An action potential is generated in an alpha motor neuron, which is located in the spinal cord. This action potential is a result of a signal from the brain or a reflex arc. Show more…
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