Multiple choice Which among the following do(es) not constitute the excretory system of a man? Urethra Urinary bladder Gall bladder Ureters Kidney Reveal answer Fill a bubble to check yourself C Correct answer Explanation The excretory system in man is formed of one pair of kidneys, a pair of ureters, a urinary bladder and a urethra. The gall bladder is a pear-shaped, hollow structure located under the liver and on the right side of the abdomen.