There are several ways to identify if a health service provider is a quackery or not. But the best solution is to check the establishment's practices. Be sure that there is a certificate from the government approving of the place. Nurses and doctors should check the vitals of patients. They must also always have a visible ID.
Answer:
Rectus abdominis muscle (shaded in red)
External oblique muscles (shaded in red)
Internal oblique muscles (shaded in red)
Transverse abdominis muscle (shaded in red)
Explanation:
Wastes from the blood leave the kidneys thru the ureter. From there the waste travels to the urinary bladder. Then the urethra carries liquid wastes from the urinary bladder to the outside of the body