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11 Cards in this Set

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# of Points of attachment
Muscles have 2 or more points of attachments to the skeleton
Tendon
Connects Ms to bone at each end
Tendon structure
connective tissue from the MS forms the tendon and connects to the periosteum of the bone
Origin MS end
The less movable part of the MS
Insertion MS end
MS attachment on the part of the body that moves
MORE MOVABLE end
Agonist
-(prime mover) perform joint motion through a specific plane
-These perform the movement
-There can be more than 1 agonist
Antagonist
-Produces opposit move from Agonist. It relaxes as agonist contracts
-Roles can flip flop
Stabilizers
(Fixators)MS that surround a body part and contract to fixate/stabilize the body part to enable another area to move
Synergist
-assists the agonist: guide refined movements; rule out unwanted movements
-NOT an agonist
Intrinsic
MS found within the body part on which they acts
Hand MS are a good example
Extrinsic
The proximal MS origin is outside
ex: wrist extension MS found on the humerus