1. Excretory System

2.  The digestive system gets rid of undigested material through the large intestine.  The respiratory system and the circulatory system work together to rid the body of waste gases.  These systems work together as part of the excretory system  If waste are not removed from the body, toxic substances build up and damage organs.

3.  Rids the blood of wastes produced by the cells.  Controls the volume of blood by removing excess water that the body cells produce during respiration.  Is part of the excretory system.

4.  To stay healthy, the fluid levels in the body have to be balanced.  The hypothalamus, (in the brain) keeps track of the amount of water in the blood.  Produces a hormone that tells the kidney to return less water to the blood.  It also tells the kidneys to increase the amount of urine, that is excreted.

5.  Two kidneys- filter blood that contains wastes collected from cells.  Ureters- narrow tubes that lead from each kidney to the bladder

6.  Bladder- a muscular organ that holds urine until it leaves the body  Urethra- a narrow tube that carries urine from the bladder to the outside of the body

7.  Liver- also filters blood to remove wastes.  The body loses large amounts of liquid wastes through exhaling and perspiring.  Excess amino acids are changed into a chemical called urea that passes to the urine.  Hemoglobin from broken-down red blood cells becomes part of bile, which is digestive fluid from the liver.

8.  People can live with one kidney.  If both were to fail, a person will need to have their blood filtered by a machine.  The Dialysis machine removes wastes from the blood, just like the kidneys.

9.  Kidney stone: small, calcium deposits present in the kidney form by accumulation of mineral from our diet. These pellets could be varied in size and may descend to urinary tract.  Bladder Cancer: there is an uncontrolled cell division in the bladder.  Urinary tract infection (UTI): is the infection of the ureters, bladder, and urethra.  Gout: caused by excess uric acid stored up in the blood. It affect join, lead to pain, redness, and inflammation.

10.  A urologist is a physician who has specialized knowledge and skill regarding problems of the male and female urinary tract and the male reproductive organs.  Dialysis technicians, also known as hemodialysis or nephrology technicians, maintain and operate the equipment used for dialysis, a process that cleanses the blood of metabolic waste products.