Ch 10 antagonist, synergist, agonist, and fixators

example of agonist

biceps brachii

agonist

muscle that has major responsibility for producing a specific movement. Prime mover

Antagonist

muscles that oppose or reverse a particular movement

example of antagonist

triceps brachii

synergist

help prime movers by adding extra force to same movement or reduces undesirable/unnecessary movements.

example of synergist

brachialis or brachioradialis

fixators

synergist that immobilizes bone or muscle's origin and give prime mover a stable base on which to act