The kidneys are bean-shaped organs located on either side of the spine that filter the blood and remove waste from the body in the form of urine. Urine travels from the kidneys through ureters that connect to the urinary bladder, where it is temporarily stored until the bladder contracts and forces urine out through the urethra.

1. Kidney’s are dark red in colour.
It is a bean shaped structure placed one on either
side of the vertebral column.
Right kidney is slightly on the lower level than the
left.
Kidney purifies blood and eliminates impurities in
the form of urine.

2. Ureter is a slender mascular tube takes its origin
out the notch called hilum and runs backward to join
the urinary bladder.
It serves to conduct the urine from the kidney to the
urinary bladder.

3. Urinary bladder is a hollow organ with thin
muscular walls located in the lower part of the
abnormal cavity.
Urine is temporarily stored in the urinary bladder.

4. Urethra is the opening through which urine is passed
out of the body.
The base of the urethra is surrounded by circular
muscles.
Circular muscles when relax open urethra and
urinary bladder contracts and force urine out called
urination.