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INTERNAL INTERCOSTAL
- O: superior border of rib below
- I: inferior border of rib above
- A: depress ribcage
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EXTERNAL INTERCOSTAL
- O: inferior border of rib above
- I: superior border of rib below
- A: elevate rib cage
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DELTOID
- O: clavicle
- I: deltoid tuberosity of humerus
- A: PRIME MOVER of arm ABduction
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SERRATUS ANTERIOR
- O: ribs
- I: scapula
- A: rotates scapula to move it laterally and upward
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PECTORALIS MINOR
- O: ribs
- I: coracoid process of scapula
- A: draws scapula forward and down
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PECTORALIS MAJOR
- O: sternal end of clavicle and sternum
- I: humerus
- A: prime mover of arm flexion
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TRANSVERSUS ABDOMINUS
- O: lumbar fascia, inguinal ligament
- I: linea alba
- A: compress abdominal contents
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INTERNAL OBLIQUE
- O: lumbar fascia, iliac crest
- I: linea alba
- A: same as external oblique
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EXTERNAL OBLIQUE
- O: ribs
- I: lina alba
- A: flex vertebral column and compress abdominal wall
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RECTUS ABDOMINUS
- O: pubic crest and symphysis
- I: xiphoid process
- A: flex and rotate vertebral column
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DIAPHRAGM
- O: internal surface of rib cage
- I: central tendon
- A: PRIME mover of inspiration
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