vb trapezius
TRANSCRIPT
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There are over 600 muscles
in your body.
The broad trapezius isamong the most recognizable
of the whole lot!
Lets take a look!
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The trapezius is namedfor its shape, which
resembles a trapezoid.
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Each trapezius extends
across one half of the back.
Together they cover these regions:
Posterior part of the neck
Shoulders
Upper back
Factoid
:Muscle
imbalance
scan
occurw
henall
threesection
softhe
trapeziu
saren
otdeve
lopedcorrec
tly.
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The trapezius is part ofthe posterior thoraxgroup.
The other muscles of this group:
Levator scapulaeSerratus posterior superiorSerratus posterior inferiorLevatores costarum brevis
Levatores costarum longiRhomboideus majorRhomboideus minorQuadratus lumborum
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Hold it right there!Quick review.
Muscles tend to have more mass at the origin.
The structure that the origin is attached to tends
to be moved by the muscle contracting.
We mark origins in red on the skeleton &
use these nifty red pins.
The opposite end of the origin is the insertion.
It tends to move while the structure of the origin is stabilized.
Origins and insertions are where the muscle attaches to a structure,either a bone or other tissue.
Insertions are marked in blue
on the skeleton & use these
cool blue pins.
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The trapezius hasmultiple points of
origin.
The first is the
occipital bone.
See how the red paint and
pins meet the muscle?
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The others are across the thoracicvertebrae of the spine.
The muscle attaches to the spinousprocesses of T01 - T12.
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The trapezius insertsonto the clavicle and the
scapula.
The insertion points on the
scapula are the acromionand the scapular spine.
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Here is the trapezius with all
the muscles that attach to
the scapula or clavicle.
Factoid:The
muscles
inthe
shoulder
regionconn
ectbone
s
oftheax
ialtobon
esofthe
append
icularske
leton.
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The trapezius acts with
other muscles to moveyour head, neck, and
shoulders.
This is Head/Neck Extension.The trapezius works with muscles of
the thorax and spine to tilt your
head back.
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Scapula upward rotation
The trapezius acts to help
the scapula:
Depress
Elevate
Adduct
Rotate
These actions help
move the upperlimbs.
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Learn more about the trapeziuswith 3D Muscle Premium for your
iPad, iPhone, PC or Mac
Watch
the trapezius elevate
the scapula!
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