1. A prime move ( agonist)
A) is the muscle most responsible for a particular motion
B) is opposed by contraction of a synergist
C) is destabilized by contraction of a fixator
D) is assisted by contraction of an antagonist
E) All of the above are correcct
** A or E??
2. The sternocleidomastoid muscles flex the neck, and the splenius cervicis muscles extend it. What is the relationship between these muscles when bowing your head?
A) The sternocleidomastoid is the prime mover, and the plenius cervicis is the fixator.
B) The sternocleidomastoid is the prime mover, and the splenius cervicis is the synergist
C) Ther sternocleidomastoid is the prime mover, and the splenius cervicis is the antagonist
D) The sternocleidomastoid is the fixator and the spenius cervicis is the prime mover.
E) the sternocleidomastoid is the synergist and the spenius cervicis is the fixator.
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