When a Muscle Fiber Receives an Action Potential from a Neuron

question 70

Multiple Choice

When a muscle fiber receives an action potential from a neuron, how many sarcomeres in the fiber contract?

• A) All of the sarcomeres in the fiber contract.
• B) The number that contracts is inversely proportional to the strength of the action potential.
• C) The number that contracts is directly proportional to the strength of the action potential.
• D) Approximately one half of the sarcomeres in the fiber contract.

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Definitions:

Semi-Strong Form

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