When a Muscle Fiber Receives an Action Potential from a Neuron

question 29

Multiple Choice

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

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

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Definitions:

Schoolwork

Assignments, projects, or studies undertaken by students as part of their educational curriculum.

Commitments

Obligations or engagements that an individual has promised to fulfill or undertake.

Balance

A state where different elements are in the correct proportions or maintained in equilibrium.

Trade-offs

The evaluation and balancing of factors when making a decision, where gaining one aspect often involves losing another.