I know that oblique refers to the direction of the fibers, but would internal/external also imply a location for these muscles? In the text, locational categorizations are described only as in reference to a bone, body region, insertion or origin.
How would "internal/external oblique" be categorized in the naming of muscles?
the orientation of the muscle fibres in both the layers are oblique. the nomenclature of the terms 'internal/external' are based only in their orientation with respect to each other and consequentially the origin and insertion of the internal oblique has to be on the interior aspect of the ribd and costal cartilages as compared to the origin and insertion of the external oblique muscles.
the intercostals intimi are the muscles situated interiormost in comparision to the 2 muscles metioned above, in the thorax.
Reply:Yes, the internal oblique lies below the external oblique
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