synergist

Examples of synergist in the following topics:

• How Skeletal Muscles Produce Movements

  • Muscles are arranged in groupings of agonist, antagonist, and synergists that produce and modulate movement.
  • Muscles are classified according to their actions during contractions as agonists, antagonists, or synergists.
  • Synergist muscles act around a moveable joint to produce motion similar to or in concert with agonist muscles.
  • During flexing of the forearm, the brachioradialis and brachialis act as synergist muscles, aiding the biceps brachii in pulling the forearm up towards the shoulder.
  • The muscles of the rotator cuff are also synergists in that they fix the shoulder joint allowing the bicepps brachii to exert a greater force.

• Muscles that Cause Movement at the Knee Joint

  • There are three muscles in the posterior compartment of the thigh: the biceps femoris and two synergistic muscles (the semitendinosus and semimembranosus).
  • Two synergistic muscles are associated with the biceps femoris, the semitendinosus and the semimembranosus.
  • The biceps femoris and synergistic semitendinosus and the semimembranosus muscles are responsible for flexing of the lower leg at the knee.

• Muscles that Cause Movement at the Hip Joint

  • Two synergistic muscles are associated with the biceps femoris, the semitendinosus, and the semimembranosus.