Excretory System

Function: it is responsible for the elimination of wastes.

Parts of this system are...

Kidneys: they carry blood to the heart from the cleaned blood.

Ureters: muscles that carry the urine from the kidneys to the bladder.

Urethra: a tube that carries the urine from the bladder to the outside of the body.

Bladder: the organ that collects the urine. Urine enters the bladder by the ureters and exits the bladder by the urethra.

Skin: protects the inner organs and tissues of the body.

Lungs: give off carbon dioxide during respiration.  

Interesting Facts:

1. The bladder in your body is as large as your brain.

2. An average human adult sheds from 30,000 to 40,000 skin cells.

3. The largest excretory organ in your body is skin.

4. Even though there are two kidneys in your body and both of them work, you can live a healthy life even if one of the kidneys has been removed.

5. In about 24 hours your blood has passed through your kidneys about 300 times.

How the system helps to maintain homeostasis?

The kidney, the main excretory organ maintains homeostasis through it, then it maintains the water balance of our bodies . Whenever we need water and haven't had anything to drink the kidney will limit urine output and whenever we've ate too much sweet or salty stuff we get the feeling of thirst. Which this sends a message to our nervous system  which brings about the feeling of thirst and you'd then drink water to satisfy that thirst and flush your blood of the extra salts or sweets.The kidneys also maintains homeostasis by  getting rid of a waste that could poison our bodies if its not removed.

Working with other Systems: