Excretory system

By. Jessica Lee

overall functions

Excretory system functions to eliminate waste, maintain blood pH, and regulate blood volume. The wastes in the body must be removed in order for the body to remain healthy.

organs/individual roles/specialized cells

Kidneys, ureter, urinary bladder, and urethra make up the excretory system. The kidneys produce urine, which removes excess nitrogen and other waste products from the body. The blood enters the kidney and the filtration starts where the blood is filtered through several organs. During the process, water and other good molecules are reabsorbed into the body while additional waste products are added to the urine. Ureter transports the urine from the renal pelvis of the kidney to the bladder. The ureter connects the kidneys and the urinary bladder in the process of excretion of wastes from the body. Urinary bladder is a sac-like hollow organ used for the storage of urine. The urethra is the tube through which urine passes from the bladder to the exterior of the body.


Excretory and circulatory system works together to pick up and filter nitrogenous waste from the body.