Physicians and surgeons have demanding education and training requirements. Almost all physicians complete at least 4 years of undergraduate school, 4 years of medical school, and, depending on their specialty, 3 to 8 years in internship and residency programs.ertification is not required for physicians and surgeons; however, it may increase their employment opportunities. M.D.s and D.O.s seeking board certification in a specialty may spend up to 7 years in residency training; the length of time varies with the specialty.
From the kidneys, urine travels down two thin tubes called ureters to the bladder. The ureters are about 8 to 10 inches long. Muscles in the ureter walls constantly tighten and relax to force urine downward away from the kidneys. If urine is allowed to stand still, or back up, a kidney infection can develop.
2 kidneys, 2 ureters, 1 bladder, 1 urethra. the kidneys make the urine. the 2 ureters carry the urine into the urinary bladder and the urethra carries the urine from the bladd â¦ er to the outside of the body. 7 people found this useful. Answered. In Urinary System.