Question

In the diagram of the excretory system of human, certain parts have been indicated by numericals. Choose the answer which shows correct labeling.

• A. $1$= urinary bladder, $2$= urethra, $3$= kidney, $4$= inferior vena cava, $5$= ureter
• B. $1$= kidney, $2$= ureter, $3$= urinary bladder, $4$= urethra, $5$= inferior vena cava
• C. $1$= kidney, $2$=urethra, $3$= urinary bladder, $4$= ureter, $5$= inferior vena cava
• D. $1$= kidney, $2$= inferior vena cava, $3$= urinary bladder, $4$= urethra, $5$= ureter

Answer 1

The correct option is B $1$= kidney, $2$= ureter, $3$= urinary bladder, $4$= urethra, $5$= inferior vena cava

The urethra is the duct by which urine is conveyed out of the body from the bladder, and which in male vertebrates also conveys semen. The urinary bladder is the organ that collects urine excreted by the kidneys before disposal by urination. A hollow muscular and distensible (or elastic) organ, the bladder sits on the pelvic floor. Urine enters the bladder via the ureters and exits via the urethra. The ureter is the duct by which urine passes from the kidney to the bladder or cloaca. Kidneys are each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, excreting urine. Renal veins connect the kidneys to inferior vena cava.

So, the correct answer is option B.