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O-CLAVICLE & STERNUM
I-INTERTUBERCULAR SULCUS OF HUMERUS
A-FLEXES, ADDUCTS, & MEDIALLY ROTATES THE HUMERUS
PECTORALIS MAJOR
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O-3RD THROUGH 5TH RIBS
I-CORACOID PROCESS OF SCAPULA
A-DEPRESSES AND PROTRACTS SCAPULA
PECTORALIS MINOR
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O-TRANSVERSE PROCESSES OF CERVICAL VERTEBRAE
I-FIRST AND SECOND RIBS
A-FLEX & ROTATE NECK; ASSIST IN INSPIRATION
SCALENES: ANTERIOR, MIDDLE, POSTERIOR
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O-LOWER BORDER OF THE RIB
I-UPPER BORDER OF NEXT RIB
A-ELEVATES RIBS FOR INSPIRATION
(ACTION VARIES FROM THIS GENERAL RULE DEPENDING ON THE INTERCOSTAL SPACE)
INTERNAL & EXTERNAL INTERCOSTALS
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O-OCCIPITAL BONE, CERVICAL& THORACIC VERTEBRAE
I-CLAVICLE & SPINE OF SCAPULA TO ACROMION
A-ELEVATES CLAVICLE; ADDUCTS, ELEVATES & DEPRESSES SCAPULA; EXTENDS HEAD
TRAPEZIUS
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O-BY APONEUROSIS FORM THORACIC, LUMBAR & SACRAL
I-INTERTUBERCULAR SULCUS OF HUMERUS
A-EXTENDS, ADDUCTS & MEDIALLY ROTATES HUMERUS
LATISSIMUS DORSI
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O-UPPER EIGHT RIBS
I-VERTEBRAL BORDER & INFERIOR ANGLE OF SCAPULA
A-ROTATES SCAPULA
SERRATUS ANTERIOR
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O-ACROMION & SPINE OF SCAPULA & ACROMIAL END OF CLAVICLE
I-DELTOID TUBEROSITY OF HUMERUS
A-ABDUCTS, FLEXES, EXTENDS, & MEDIALLY/LATERALLY ROTATES THE HUMERUS
DELTOID
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O-LOWER 8 RIBS
I-LINEA ALBA & ILIAC CREST
A-COMPRESSES ABDOMEN
EXTERNAL OBLIQUE
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O-ILIAC CREST
I-LINEA ALBA
A-COMPRESSES ABDOMEN
INTERNAL OBLIQUE
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O-LOWER 6 RIBS & ILIAC CREST
I-LINEA ALBA
A-COMPRESSES ABDOMEN
TRANSVERSUS ABDOMINIS
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O-PUBIC SYMPHYSIS
I-COSTAL CARTILAGE
A-COMPRESSES ABDOMEN & FLEXES VERTEBRAL COLUMN
RECTUS ABDOMINIS
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