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Superficial layer - Posterior Pectoral Girdle
Trapezius
Lower Trapezius
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Created by
Hiri P
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Cards (5)
O (origin)
Extensive
medial
attachment from the
base
of the
medial
1
/3 of the
superior nuchal line
and the
occipital
bone
Ligamentum nuchae
Spinous processes
of
C7
to
T12
and the
intervening supraspinous ligament
A)
Lower Trapezius
1
R (direction)
Upwards
and
laterally
A)
Lower Trapezius
1
I (insertions)
Converge to form a
tendon
that attaches to
inferior
surface of
medial
end of the
spine
of the
scapula
A)
Lower Trapezius
1
A (actions)
Depression
of scapula
retraction
of scapula
lateral rotation
of scapula
A)
Lower Trapezius
1
NS (nerve supply)
Motor:
Spinal
part of
cranial
nerve
11
(‘Accessory’ nerve)
Sensory:
Ventral rami
C3
,
C4
A)
Lower Trapezius
1