The human respiratory system has the following parts:

i. Kidney: The kidneys filter the wastes which is flushed out of the body as urine and excreta.

ii. Ureter: The ureters transfer liquid waste from the kidneys into the urinary bladder.

iii. Urinary Bladder: The urinary bladder stores the urine until it is finally discharged from the body.

iv. Urethra: The urethra is a carrier of semen (in males) as well as urine for the ultimate discharge out of the body.

v. Urinary Opening: The urine is exits out of the body from this opening.

Fig. Excretory System