Potty Time

In order to rid the body of waste products that could/are harmful the excretory system is able to rid these toxic wastes from the body. There are also quite a few steps involved in the final processes of the excretory system. 

How does this happen?

Amidst blood's circulation throughout the body it stops at the kidney. Once at the kidney the blood delivers waste that it has been carrying that it does not need such as water, minerals and a nitrogen  amino group (Nh2) had been taken apart from amino acids before they were converted into energy. Nh2 then unites with a hydrogen proton and ammonia or Nh3 is created in the liver. Ammonia is then transferred into the blood and then combines with other waste products of the body in the kidney including various amino,water and other nutrients. This amalgamation of waste liquids in the kidneys becomes urine. The urine then gets funnelled through two ureters tubes (one per kidney) until it reaches the bladder. Consider the bladder a storage space for urine until the bladder expands and sends nerve signals through the body when it's full and the urine must leave the body out of the urethra. 

Major Organs:

Kidney: Most people have two kidneys located in the rear of the abdomen. Each kidney has three zones: renal medulla(kidneys inner layer), renal cortex (kidneys outer layer) and the renal pelvis (brings the urine away from the kidney using ureter).Blood enters the kidney by the renal artery which then splits into countless minuscule arterioles which eventually lead to the Bowman's Capsules of nephrons. The Bowman's Capsules are at the end of a kidney tubule and are a large cluster of blood capillaries and a thin two cell walled capsule. Inside the Bowman's Capsules are nephrons which are encompassed by capillaries so the blood can travel in and out. Nephrons utilize filtration pressure to remove wastes from the blood and urine is created. See above   

Liver: The liver is placed on the right side of the torso protected by the rib cage. Underneath the liver are the gallbladder and parts of the intestines and pancreas. There are two sides of the liver known as the right and left lobes. When blood comes from the digestive system the liver's primary function is to detoxify it. As well the liver detoxify (or attempts to) chemicals, accepts medicine into the body and creates bile which will go through the intestines and up the other way of the digestive system. Another function of the liver is to create proteins that are extremely important for blood clotting.