From the looks of the photo posted above by Alex Santoso, it might rather be pig colons?http://4.bp.blogspot.com/-8AFVDUjJ9-Y/TsUtRR9UylI/AAAAAAAADkQ/Ew7xzfc2ZxI/s400/AnatomyGITMammalsLargeIntestine%252520F5_10.jpg Abusive comment hidden. (Show it anyway.)
http://4.bp.blogspot.com/-8AFVDUjJ9-Y/TsUtRR9UylI/AAAAAAAADkQ/Ew7xzfc2ZxI/s400/AnatomyGITMammalsLargeIntestine%252520F5_10.jpg