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Vocabulary flashcards for the muscular system.
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Fascicle Arrangements
Parallel, Convergent, Pennate, Circular
Origin of a Muscle
The fixed attachment; usually proximal
Insertion of a Muscle
The movable attachment; usually distal
Agonist or Prime Mover
A muscle responsible for a specific movement
Antagonist
A muscle that opposes the action of the agonist
Synergist
A muscle that assists the agonist
Isometric Contraction
Muscle tension without a change in length
Isotonic Contraction
Muscle changes length to produce movement
Types of Isotonic Contractions
Concentric and Eccentric
Concentric Contraction
Muscle shortens while producing force
Eccentric Contraction
Muscle lengthens while producing force
Muscle Names
Names often describe action, shape, location, or number of origins
Example of a Name Describing Function
Flexor carpi radialis - flexes the wrist
Major Muscle Divisions
Axial and Appendicular muscles
Axial Muscles
Support and position the head, neck, and trunk
Appendicular Muscles
Support limbs and control limb movements