Which of the following is not true about the anatomy of the urinary system?

Which of the following is not true about the anatomy of the urinary system? Multiple Choice

  • The kidneys are retroperitoneal.
  • The ureters connect the kidneys to the urinary bladder.
  • The urethra of males is longer than the urethra of females.
  • The kidneys are at equal heights within the pelvic cavity.
  • The right kidney is located more inferiorly than the left kidney.

Answer

Answer: The kidneys are at equal heights within the pelvic cavity. Explanation: •The two kidneys are not in same height. The kidneys are just naturally unequal in size. The right kidney is commonly slightly bigger than the left. The kidneys are generally close to each other in size with the size difference generally less than one centimeter in length. Whereas the following are true: • The kidneys are considered “retroperitoneal” organs, which means they sit behind a lining in the abdominal cavity, unlike all other abdominal organs. • Ureters are tube-like structures that connect the kidneys with the urinary bladder. Each ureter arises at the renal pelvis of a kidney and travels down through the abdomen to the urinary bladder. The walls of the ureter contain smooth muscle that can contract to push urine through the ureter by peristalsis. • The female urethra is embedded within the vaginal wall, and its opening is situated between the labia. The female urethra is much shorter than that of the male, being only 4 cm (1.5 inches) long. It begins at the bladder neck and opens to the outside just after passing through the urethral sphincter.

• The right kidney is slightly lower than the left kidney to accommodate the liver.

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