Doctors can often see a large hiatus hernia on a chest x-ray. Otherwise, people are given barium in a liquid before x-rays are taken (barium swallow). The barium outlines the esophagus, making abnormalities easier to see. Hernias can also be seen during an upper endoscopy.
The kidneys filter the blood to remove wastes and produce urine. The ureters, urinary bladder, and urethra together form the urinary tract, which acts as a plumbing system to drain urine from the kidneys, store it, and then release it during urination.
A major function of the excretory system is the excretion of nitrogenous waste. These include ammonia, urea and uric acid .Excretion also helps to maintain a constant body temperature by removing excess heat and maintain a constant internal environment in association with the other system of the body.eamination is the process in which a. poisonous urea is removed from the blood and it occurs in kidneysb. amino acids are absorbed from digested food, and it occurs in intestinal villic. amino acids are broken down to produce urea and it occurs in liverd. amino acids are synthesised and it occurs in ribosomes 26.