UE Muscles

Question 1

What are the functional groups of muscles

Answer 1

agonist
fixator
synergist
antagonist

Question 2

What is agonist muscle
and what are two types

Answer 2

muscle responsible for a specific action

prime mover - mainly responsible for specific action
accessory mover - assists the prime mover

Question 3

what is a fixator muscle

Answer 3

stabilizes one part of the body to form a base for another action
EX muscles of shoulder stabilize humerus when doing biceps curls

Question 4

what is a synergist muscle

Answer 4

facilitates the action of other muscle by antagonizing an undesirable motion - thus facilitates action of primary mover
EX wrist extensors synergist to finger flexors

Question 5

what is a antagonist muscle

Answer 5

produces opposite action of agonist
EX muscles that extend forearm antagonist to flexors

Question 6

Explain isometric contraction

Answer 6

force generated without changing length of muscle
EX static hold

Question 7

Explain isotonic contraction and the two types