Back IDENTIFICATION

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Last updated 5:34 AM on 6/7/26
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10 Terms

1
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Superior Trapezius (Upper)

orange section

<p>orange section</p>
2
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Middle Trapezius

red section

<p>red section</p>
3
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Inferior Trapezius (Lower)

purple section

<p>purple section</p>
4
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Levator Scapulae

Actions: Elevates & rotates scapula; lateral flexion of neck

Origin: Transverse process C1-C4 vertebrae

Insertion: Medial border of superior angle of scapula

Innervation: Dorsal scapular nerve

<p>Actions: Elevates &amp; rotates scapula; lateral flexion of neck</p><p>Origin: Transverse process C1-C4 vertebrae</p><p>Insertion: Medial border of superior angle of scapula</p><p>Innervation: Dorsal scapular nerve</p>
5
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Rhomboid Major

Actions: Retracts scapula

Origin: Spinous process T2-T5 vertebrae

Insertion: Medial boarder of scapula

Innervation: Dorsal scapular nerve

<p>Actions: Retracts scapula</p><p>Origin: Spinous process T2-T5 vertebrae</p><p>Insertion: Medial boarder of scapula</p><p>Innervation: Dorsal scapular nerve</p>
6
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Rhomboid Minor

Actions: Retracts scapula

Origin: Spinous process C7-T1 vertebrae

Insertion: Medial boarder of scapula

Innervation: Dorsal scapular nerve

<p>Actions: Retracts scapula</p><p>Origin: Spinous process C7-T1 vertebrae</p><p>Insertion: Medial boarder of scapula</p><p>Innervation: Dorsal scapular nerve</p>
7
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Latissimus Dorsi

Actions: Extends, adducts & medially rotates humerus

Origin: Spinous process T7- sacrum, thoracolumbar fascia, iliac crest, & inferior ribs

Insertion: Intertubercular groove of humerus

Rev action: Raises body towards arms during climbing

Innervation: Thoracodorsal nerve.

<p>Actions: Extends, adducts &amp; medially rotates humerus</p><p>Origin: Spinous process T7- sacrum, thoracolumbar fascia, iliac crest, &amp; inferior ribs</p><p>Insertion: Intertubercular groove of humerus</p><p>Rev action: Raises body towards arms during climbing</p><p>Innervation: Thoracodorsal nerve.</p>
8
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Serratus Anterior

Actions: Scapular protraction, upward rotation of scapula, stabilize the scapula

Origin: Surface of the 1st-8th ribs

Insertion: Medial boarder of scapula

Innervation: Long thoracic nerve

<p>Actions: Scapular protraction, upward rotation of scapula, stabilize the scapula</p><p>Origin: Surface of the 1st-8th ribs</p><p>Insertion: Medial boarder of scapula</p><p>Innervation: Long thoracic nerve</p>
9
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Serratus Posterior Superior

Actions: Facilitate respiration & elevate the ribs

Origin: C7-T3 vertebrae spinous process & Nuchal ligament

Insertion: Upper boarder of 2nd-5th ribs

Innervation: Ventral rami of intercoastal nerves T1-T5

<p>Actions: Facilitate respiration &amp; elevate the ribs</p><p>Origin: C7-T3 vertebrae spinous process &amp; Nuchal ligament</p><p>Insertion: Upper boarder of 2nd-5th ribs</p><p>Innervation: Ventral rami of intercoastal nerves T1-T5</p>
10
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Serratus Posterior Inferior

Actions: Facilitate respiration & depress the ribs

Origin: T11-L2 vertebrae spinous process

Insertion: Lower boarder of 9th-12th ribs

Innervation: Ventral rami of intercoastal nerves T9-T12

<p>Actions: Facilitate respiration &amp; depress the ribs</p><p>Origin: T11-L2 vertebrae spinous process</p><p>Insertion: Lower boarder of 9th-12th ribs</p><p>Innervation: Ventral rami of intercoastal nerves T9-T12</p>