Chapter 15th muscle practical written

18 terms by jennifershirley

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prime mover

term for the biceps brachii during elbow flexion

synergist

term that describes the relation of brachialis ti biceps brachii during the elbow flexion

antagonist

term for the triceps brachii during elbow flexion

antagonist

term for the iliopsoas during hip extension

prime mover

term for the gluteus maximus during hip extension when walking up stairs

fixator

term for the rotator cuff muscles and deltoid when the elbow is flexed and the hand grabs a tabletop to lift the table

deltoid, vastuslateralis, gluteus maximus & gluteus medius

commonly used for intramuscular injections

quadriceps

the group that contains a large sesamoid bone the patella which is an insertion tendon

calcaneal

The triceps surae insert in common into the ______ tendon

proximal

the bulk of the tissue of a muscle tends to lie _______ to the part of the body it causes to move

humerus, radius & ulna

The extrinsic muscles of the hand orgininate

anterior

most flexor muscles are located on the ______ aspect of the body

posteriorly

most extensors are located __________________

knee

An exception to this generalization is the extensor-flexor musculature of the ______________.

fixators

specialized synergists. They immobilize the orgin of a prime mover so that all the tension is exerted at the insertion. (fix the posture, fixes things)

synergists

aids the action of agonists either by assisting with the same movement or by reducing undesirable or unnessary movement.

Prime movers or agonists

muscles that are primarily responsible for producing a particular movement

agonists

muscles that oppose or reverse a movement are called____________.

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