Conversation so far:
where is the oblique muscle located in the body
The external oblique muscles are located on the outer surface of the sides of the abdomen, on each side of the rectus abdominis.
What is the purpose of the external oblique muscle?
The external oblique functions to pull the chest downwards and compress the abdominal cavity
Is there an inverse muscle to the external oblique muscle?
The abdominal internal oblique muscle, also internal oblique muscle or interior oblique, is an abdominal muscle in the abdominal wall that lies below the external oblique muscle.
wow does the abdominal internal oblique muscle help the body
The abdominal internal oblique muscle acts as an antagonist to the diaphragm, helping to reduce the volume of the chest cavity during exhalation.

Question: Does another muscle work alongside the two?
Self-contained rewrite: does another muscle work alongside the abdominal internal oblique and external oblique muscles?