Excretory System

What are some parts of the Excretory system and what are their roles?

  1. The lungs: The lungs are for releasing toxins by breathing out gases. It’s important as it releases the toxins that can’t be released by liquids by using gases. If this component doesn’t exist, we wouldn’t be able to breathe and we won’t be able to release the amount of toxins as a normal human being.
  2. The kidneys: The kidneys are used to filter out the blood to clean it and release the toxins at the same time. If they don’t exist, our blood could have a lot of toxins in it and it will damage the body slowly but steadily. Although this organ is important, people can still survive with only half although normally people have two.
  3. The bladder: This is a muscle and an organ that is responsible for squeezing out all the urine so that it could be removed. It is also used for storing up the urine so that it isn’t flowing everywhere. If we don’t have this organ, our urine will flow inside our body and as it’s acidic, it will burn the other organs and we won’t be able to urinate.
  4. The ureter: This is a tube that is used for making urine flow through from the kidneys to the bladders. If these tubes are slightly more slanted then they should be, they could make the urine from the bladder flow back into the kidneys, this could damage the kidneys and cause problems when the kidneys start to malfunction.
  5. The urethra: This is the tube where the urine gets released out of the bladder.
  6. The sweat glands: These are structures of skin which produce sweat. They vary in density from region to region. There are 2 kinds of sweat glands: Eccrine sweat glands and Apocrine sweat glands. Eccrine sweat glands are located on the soles of hands, in the hair etc. These glands are for releasing a large amount of sweat whilst the Apocrine sweat glands are located in nearly every part of the body and release less sweat than the Eccrine sweat glands.