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MUSCLE ARRANGEMENT
Muscles
Question | Answer |
---|---|
MUSCLE ARRANGEMENT AT A JOINT | CARRY OUT OPPOSITE MOVEMENTS WORK AGAINT EACH OTHER IN A PRODUCTIVE WAY |
PRIME MOVERS (AGONIST) | CONTRACTING MUSCLE EG: BICEPS BRACHII = FLEX AT ELBOW |
ANTAGONIST | OPPOSITE MOVEMENT RELAXED OR OFFER RESISTANCE TO PRIME MOVERS |
EXAMPLE OF AN ANTAGONIST | TRICEPS BRACHII - FLEX AT ELBOW |
SYNERGIST | ASSIST PRIME MOVER WITH PRIMARY ACTION PROMOTE SAME MOVEMENT OR REDUCE UNNECESSARY MOVEMENTS |
EXAMPLE OF SYNERGIST | BRACHIALIS , BRACHIORADIALIS EG: FLEX AT ELBOW |
FIXATOR | STABILIZE ORIGIN FOR PRIME MOVER |
EXAMPLE OF FIXATOR | SCAPULA, CLAVICLE, HUMERUS MUSCLE - FLEX AT ELBOW EG. DELTOID |
EXTEND AT ELBOW | TRICEPS - PRIME MOVER BICEPS - ANTAGONIST NO SYNERGISTS SAME FIXATORS |