The external oblique muscles are
primarily located in the anterior torso of the body but as they extend
around the sides of the torso they can also be illustrated and labelled
as "posterior muscles".
For a detailed illustration of the location of the external
oblique muscles see the pages about Anterior
Muscles and/or Posterior
Muscles in the Revision for Therapists Section of the IvyRose website.
Further information about the external oblique muscles
is summarised below:
Point(s) of Origin:
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Lateral surface of the 5th to the 12th ribs.
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Point(s) of Insertion:
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Abdominal aponeurosis, the lowest three ribs,
and the iliac crest.
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Action(s):
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* Rotates, flexes (bends), and side-bends the trunk or "torso"
of the body.
* Supports the viscera (i.e. the organs within the
body cavities, and especially the organs of the abdominal cavities
- such
as the stomach and other digestive organs).
* Assists with exhalation..
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