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skeletal muscles cause movemetn by exerting ______ on tendons, which pulls on bones or other structures
the______ of a muscle are the main movements that occur during contraction (ex flexion or extension)
first-class, second-class, thrid-class
3 types of levers that differ on the position of fulcrum, effort, load
size/ shape/ location/ action/ number of attachment/ direction of its fiber
6 rules to naming a muscle
fascia or skull
muscle of facial expression usually orginate in _____________ and insert into the skin
because of their insertions the muscles of fascial expression moves the ______ rather than a joint when they contact
this is called____ because they originate on the outside of the eyeballs in the bony orbits and insert on the outer surface of the sclera
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