What Happens During Coactivation

question 77

Multiple Choice

What happens during coactivation?

• A) All of the muscle fibres in a skeletal muscle are activated simultaneously.
• B) The gamma motor-neuron and alpha motor-neuron systems to a skeletal muscle are activated simultaneously.
• C) All of the cross bridges within a single skeletal muscle are activated simultaneously.
• D) The primary (annulospiral) and secondary (flower-spray) endings within a muscle spindle are activated simultaneously.

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