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11 Cards in this Set
- Front
- Back
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Primary action of the erector spinae?
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Extend vertebral column.
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Primary action of the diaphragm?
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Inhalation
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Primary action of the external intercoastals?
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Elevate the ribcage for inhalation.
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Primary action of the internal intercoastals?
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Depress the ribcage for exhalation.
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Primary action of the rectus abdominus? Origination? Insertion?
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Flex the spine
O-from the pubis I-xiphoid process |
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Primary action of the external oblique?
What layer? |
Both contract=Vertebral column flexing.
One contracts=rotation. 1 |
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Primary action of the internal oblique?
What layer? |
Both contract=Vertebral column flexing.
One contracts=rotation. 2 |
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Primary action of the transverse abdominals? What layer?
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Compress abdomen.
3 |
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What muscles assist in compressing abdomen?
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Rectus abdomonis and oblique muscles. **synergists**
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What are the antagonists of the erector spinae??
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rectus abdominis, external oblique, internal oblique, and tranversus abdominis.
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Are the external intercoastals synergists or antagonists to the internal intercostals?
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antagonists
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