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9 Cards in this Set
- Front
- Back
Sacrospinalis (Erector spinae)
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Origin: Cervical, thoracic, and lumbar vertebrae
Insertion: Cervical, thoracic, and lumbar vertebrae Action: Extends the spine |
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Diaphragm
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Origin: Inner surfaces of lower six ribs
Insertion: Central tendon of the diaphragm Action: Pulls central tendon inferiorly |
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External intercostal
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Origin: Inferior border of rib above
Insertion: Superior border of rib below Action: Draws ribs together and raises them |
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Internal intercostal
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Origin: Superior border of rib below
Insertion: Inferior border of rib above Action: Draws ribs together and lowers them |
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External oblique
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Origin: External surface of lower ribs
Insertion: Linea alba Action: Compresses the abdomen |
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Internal oblique
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Origin: Inguinal ligament
Insertion: Linea alba Action: Compresses the abdomen |
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Transversus abdominis
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Origin: Inguinal ligament
Insertion: Linea alba Action: Compresses the abdomen |
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Rectus abdominis
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Origin: Pubic crest
Insertion: Xiphoid process of the sternum Action: Compresses abdomen |
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Quadratus lumborum
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Origin: Iliac crest
Insertion: Transverse processes of upper lumbar vertebrae Action: Flexes the spine |