what does the oblique muscle do
Your have external obliques and internal obliques. The external oblique is the largest muscle closest to the surface on your side. Its main job is to pull the chest downwards and compress the abdominal cavity.The internal obliques, on the other hand, have two main jobs.First, it counteracts the diaphragm (the muscle that contracts excessively when you hiccup) so that you can exhale. Second, it allows you to rotate and bend from your trunk.he internal obliques, on the other hand, have two main jobs. First, it counteracts the diaphragm (the muscle that contracts excessively when you hiccup) so that you can exhale. Second, it allows you to rotate and bend from your trunk.