Oblique muscles are an example of which muscle feature?
Which? Is there supposed to be a list here?
Read, read, read, and let us know what you think:
http://www.google.com/search?q=oblique+muscles+function&oq=Oblique+muscles&aqs=chrome.5.69i57j0l5.6940j0j7&sourceid=chrome&es_sm=119&ie=UTF-8