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Acromiodeltoid
- Location: Dorsal side, shoulder area
- Origin: acromion process of scapula
- Insertion: humerus
- Movement: abduct humerus
- Other: above spinodeltoid, top of shoulder on back
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what is muscle number 1
Latissimus Dorsi
- Location: dorsal and lateral
- Origin: thoracic and lumbar vertebrae
- Insertion: humerus
- Movement:adducts humerus
- Other: swimmers muscle, like a blanket, on side of chest
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Spinodeltoid
- Location: Dorsal side, shoulder
- Origin: spine of scapula
- Insertion: humerus
- Movement: abduct humerus, raise arm
- Other: below acromiodeltoid
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muscle number 2?
Spinotrapezius
- Location: Dorsal side
- Origin: thoracic vertebrae
- Insertion: scapula
- Movement: move pectoral girlde, shoulders, and posture support
- Other: diamond shape over entire back, over thoracic vertebrae
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Triceps Brachii- Lateral Head
- Location: forelimb, lateral
- Origin: humerus
- Insertion: ulna
- Movement: extend elbow
- Other: probe slide under, thin and wide
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