Download The muscles we have in our body are divided into three classes of

The muscles we have in our body are divided into three classes of muscles:
cardiac, smooth, and skeletal. Usually, when we think of muscular system
we often only remember the skeletal muscles because they make up what is
recognized as the muscular system. The muscular system, composed of over
600 muscles, come in a variety of shapes and forms. Diffrences between
each muscle are recognized by location, function, structure, and the way
they are contracted.
Muscle-Bone interactions LEVER SYSTEM
A lever is a rigid bar on which a given load is moved with supporting help
from a fulcrum. A fulcrum is a fixedpoint on which lever can move in
diffrent ways or angles.
Flexors
Flexors bend at the joint, decreasing the interior angle of the joint «put
graphic of this here». The «bracius» humorous, or bicep, is a flexor of the
elbow joint, bringing the fist towards the shoulder. If a flexor appears in
either the wrist or ankle joints, it becomes a plantarflexor «try to put a
graphic of this too».
Extendors
Opposites of flexors, extensors unbend at the joint, increasing the interior
angle «graphic here, possibly the same as that above». The «tracius»
humorous, or tricep, is an extensor of the elbow joint, taking the fist farther
away from the shoulder. If an extensor is found in the wrist or ankle joints, it
becomes a dorsiflexor «graphic here, again maybe the same as above».
Abductors
Abductors take away from the body, like lifting the arm to the side. Abdmeans to take away, like abduct and abdicate. Spreading out your fingers
uses abductors, because you are taking away your fingers from an imaginary
line running down your arm «graphic».
Adductors
Adductors, the opposites of abductors, move toward the body. Add- means
to increase or include. By lowing an arm raised to the side, or moving your
fingers together while keeping them straight, your muscles are adducting.
«graphic»
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