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a muscle that contracts while another relaxes


opposies- creats resistance


a muscel that acts to prevent an nwattanted action duuring a movement


referred to as teh fixed end or head is the stationary part of the muscle, closer to the axial skeleton or mid section of the body


is the mobele end or the distal insertion

pennate muscles

diagonal orientation or feather like orintation

unipennate bipennate or multipennate

a type of pennate muuscle - the deltoid muscle

straight fusiform muscle

have the fasciculi prganized parallel to the long axis of the muscle also called longitudinal- biceps brachii and gastroznemuis

ogbicular muscle

also called circular- the main role is to open and close to permit light fluid - eye...

4 classifications in naming a muscle

namely shape, location, size and function


muscles ability to respond to a stimulus


muscles ability to stretch beyond its normal resting length


muscles abilit to return to its normal length after being stretched

Elasticity paralel elastic component (PEC)

responsible for resting tension in muscle provided by the muscle membranes

Serier Elastic component (SEC)

storing elastic energy so the muscle can return to its normal length

visco elasticity

muscle contains both viscous and elastic components and we refre to this as visco-elasticity


used to move the body- skeleton muscles


smooth not controlled at will- smooth muscle

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