Question

question 10
mark this question
contraction of which of the following muscles stabilizes the origin of the primary mover of any given body movement?
fixator muscle
synergist muscle
antagonist muscle
agonist muscle
save & continue

Explanation:

• Fixator Muscle: Fixator muscles stabilize the origin of the primary mover (agonist) during a body movement. For example, when the biceps (agonist) flexes the elbow, fixator muscles in the shoulder stabilize the scapula (origin of the biceps).
• Synergist Muscle: Synergists assist the agonist. They may help with the same movement or prevent unwanted movements. For instance, in elbow flexion, brachialis can act as a synergist to biceps.
• Antagonist Muscle: Antagonists oppose the action of the agonist. The triceps is the antagonist to the biceps during elbow flexion.
• Agonist Muscle: Agonists are the primary muscles responsible for a movement. The biceps is the agonist in elbow flexion.

Answer:

Fixator Muscle