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4 Cards in this Set
- Front
- Back
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Rectus Abdominus
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Orgin: Pubic crest and pubic symphysis
Insertion: Cartilage of fifth to seventh ribs and xiphoid process Action: Flexes vertebral column and compresses abdomen to aid in defecation, urination, forced experation and childbirth |
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External Oblique
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Orgin: Inferior eight ribs
Insertion: Iliac crest and linea alba Action: Contraction of both compresses abdomen; contraction of one side alone bends vertebral column laterally; laterally rotates the vertebral column |
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Internal Oblique
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Orgin: Iliac crest, inguinal ligament, thoracolumner fascia
Insertion: Cartilage of inferior three or four ribs and linea alba Action: Compresses abdomen; contraction of one side alone bends vertebral column laterally; laterally roates the vertebral column |
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Transversus Abdominis
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Orgin: Iliac crest, inguinal ligament, lumbar fascia, and cartilages of inferior six ribs
Insertion: Xiphoid process, linea alba and pubis Action: Compresses abdomen. |
