Explore BrainMass
Share

Explore BrainMass

    Muscle contraction: Motor Multiple Unit Summation

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Explain how a slight (but smooth) contraction differs from a vigorous contraction of the same muscle; use the concepts of multiple motor unit summation.

    © BrainMass Inc. brainmass.com October 9, 2019, 7:01 pm ad1c9bdddf
    https://brainmass.com/biology/human-anatomy-and-physiology/muscle-contraction-motor-multiple-unit-summation-105447

    Solution Preview

    Adjusting Tension in Whole Muscles

    A twitch contraction is the simplest of all muscle contractions. It is a brief contraction of all the muscle fibers in a motor unit of a muscle in response to a single action potential in its motor neuron. But most muscle movements in the body are not twitches. Therefore, the amount of tension or force that a skeletal muscle can develop must vary. It depends on the frequency of stimulation of the muscle fibers, the length of ...

    Solution Summary

    Muscle contraction in light of motor multiple unit summation is discussed in this solution.

    $2.19