Question

multiple choice question

which term refers to a muscle that prevents a bone from moving during an action?

antagonist
prime mover
fixator
agonist

Explanation:

Analyze the question prompt

The question asks for the term that refers to a muscle that prevents a bone from moving during an action. This means the muscle acts to stabilize the bone or the origin of the active muscle so that the active muscle can perform its function efficiently.

Evaluate the given options

• Antagonist: A muscle that opposes the movement of the prime mover (Antagonist Muscle Function).
• Prime mover (or Agonist): The muscle that produces most of the force during a particular joint action (Agonist Muscle Function).
• Fixator: A muscle that prevents a bone from moving, stabilizing it in place so that another muscle has a firm base from which to pull.
• Agonist: Another term for the prime mover (Agonist Muscle Function).

Identify the correct term

Based on the definitions of Muscle Functional Groups, a muscle that stabilizes a bone and prevents it from moving during an action is called a fixator.

Answer:

• Antagonist
• Prime mover
• Fixator (Correct answer)
• Agonist