Lumbar Spine Muscles I BIOL 106 A

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4 Terms

1
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<p>Rectus Abdominus origin</p>

Rectus Abdominus origin

Pubic crest & pubic symphysis

2
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<p>Rectus abdominus insertion</p>

Rectus abdominus insertion

Xiphoid processes & costalcartilage of ribs 5-7

3
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<p>Rectus abdominus action(s)</p>

Rectus abdominus action(s)

Primary: lumbar flexion

Secondary: stabilize pelvis, increase intra-abdominal pressure

4
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<p>Rectus abdominus innervation</p>

Rectus abdominus innervation

Intercostal nerves