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    Abdominal Muscles

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    (a) Name the four muscle pairs that act in unison to compress the abdominal contents.

    (b) How does their arrangement (fiber direction) contribute to the strength of the abdominal wall?

    (c) Which of these muscles can effect lateral rotation of the spine?

    (d) Which can act alone to flex the spine?

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    https://brainmass.com/biology/human-anatomy-and-physiology/abdominal-muscles-105455

    Solution Preview

    ***Find an atlas or a picture online to look at the orientation of these muscles.***

    (a) The muscles of the abdominal wall are the rectus abdominus and (from superficial to deep) the exterior oblique, the internal oblique, and the transversus abdominus.

    (b) Each of these muscles are ...

    Solution Summary

    The expert names the four muscle pairs that act in unison to compress the abdominal contents. The muscles that effect lateral rotation of the spine are given.

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