Muscle Fibers Generally Only Have One Motor End Plate, but Motor

question 24

Multiple Choice

Muscle fibers generally only have one motor end plate, but motor neurons innervate many different muscle fibers in a group. Choose the statement that correctly explains how this affects muscle contraction.

• A)While muscle fibers only have one motor end plate, they can recruit each other to contract once a fiber receives a signal.
• B)When a motor neuron transmits a signal, only one fiber will contract with strong force.
• C)A signal traveling through one motor neuron can potentially make multiple fibers in a group contract, generating more force.
• D)The force of a contraction does not at all depend on the strength of the signal sent via the motor neuron.

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Definitions:

Overt Behavior

Refers to actions and behaviors that are observable and measurable, as opposed to inner processes like thoughts and feelings.

Rigid Memory

A memory condition characterized by inflexibility, where past experiences overly dictate current behavior and thoughts.

Vicariously

Experiencing something through another person's actions by imagining what it would be like to be in their situation.

Reinforcement

In psychology, a concept in operant conditioning where a behavior is strengthened or increased by following it with a positive stimulus or the removal of a negative one.