gen muscle info
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17 Terms
Muscular system has three types of muscle
Skeletal voluntary Smooth involuntary Cardiac involuntary
Skeletal muscle contracts when stimulated by neurons
Voluntary control of movement
Isometric contraction
Tension without muscle length change
Isotonic contraction
Tension with muscle length change
Concentric contraction
Muscle shortens because tension > resistance
Eccentric contraction
Muscle lengthens because tension < resistance
Isokinetic contraction
Muscle contracts at constant speed
Muscles are named by shape
Oblique Quadratus
Muscles are named by location
Example temporalis femoris
Muscles are named by size
Major Minor Magnus Brevis Longus
Muscles are named by function
Flexor Extensor Adductor Pronator
Muscles are named by number of heads
Biceps two Triceps three
Origin
Stable proximal attachment
Insertion
Moveable distal attachment
Agonist
Prime mover muscle
Antagonist
Opposes movement
Synergist
Assists prime mover
