Back Muscles
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8 Terms
Origin: thoracic vertebrae
Insertion: scapula
Action: raises/rotates scapula
Trapezius
Origin: lower 6 thoracic vertebrae
Insertion: humerus
Action: extends arm
Latissimus dorsi
Origin: spinous process of T2-T5
Insertion: medial border of scapula
Action: stabilize scapula
Rhomboid major
Origin: spinous process of C7 and T1
Insertion: medial border of scapula
Action: stabilize scapula
Rhomboid minor
Origin: spinous process of T11-L2
Insertion: ribs 9-12
Action: depress lower ribs
Serratus posterior inferior
Origin: ribs 3-6
Insertion: 4-6 cervical vertebrae
Action: extend/flex vertebrae
Iliocostalis
Origin: transverse process
Insertion: transverse process
Action: extend/flex vertebrae
Longissimus
Origin: spinous process lumbar
Insertion: base of skull
Action: extend vertebrae
Spinalis
Note 
Flashcards (28)