Grade Saved


Your grade

The urinary system





The urinary syste, is the system consisting of the kidney's, ureters, bladder and urethra.

The urinaty system works closely with the circulatory system, because the kidneys produce urine by filtering blood. [1]


Urine contains water, urea and salts.

Urea is produced in the liver when excess amino acids are broken down.

It is the main waste product removed in the urine. [2]


Note that ‘ureter’ differs from the word ‘urethra’.

The ureters are tubes that carry urine from the kidneys to the bladder, whereas ...

... the urethra is the tube that carries urine out of the body. [4]


1. Blood is brought to the kidney in the renal artery.

2. The kidneys filter the blood and then reabsorb useful materials such as glucose.

3. After it has been purified, the blood returns to the circulation through the renal vein.

4. Urine is taken from the kidneys to the bladder by the ureters.

The bladder stores the urine until it is convenient to expel it from the body. [3]


- filtering the blood to produce urine

- transport of urine

- storage and excretion of urine

- maintenance of the body's fluid and ion balance [5]


[1] From Socatic App - Urinary system




[5] From Socatic App - Urinary system

You may be interested in

© 2017