Flashcards in the structure and function of the muscular system Deck (7):
what is a agonistic pair ?
a pair of muscles that are arranged in pairs either side of a joint when one relaxes and one contracts for movement to occur e.g biceps and triceps at elbow joint
what is the agonist ?
the muscle or group or muscles that contract to cause movement
what is the antagonist ?
the muscle or group of muscles thats relax to cause movement
what is a isotonic contractions ?
when the muscle changes shape when it contracts
what is isometric contractions ?
when muscle stays the same length when it contracts
what is concentric ?
when the muscle contracts and shortens