1. The Urinary System

2. As your body performs the chemical activities that keeps you alive, wastes material such as carbon dioxide and nitrogen are produced. Your body has to get rid of these toxin in order to stay healthy. As your body performs the chemical activities that keeps you alive, wastes material such as carbon dioxide and nitrogen are produced. Your body has to get rid of these toxin in order to stay healthy.

3. How does your body get rid of these wastes? How does your body get rid of these wastes? Which body systems are involved in excreting these wastes? Which body systems are involved in excreting these wastes?

4. Excretion- is the process of removing wastes and excess products from the body. Excretion- is the process of removing wastes and excess products from the body. Three of your body systems are involved in excretion: your skin, your lungs and urinary system. Three of your body systems are involved in excretion: your skin, your lungs and urinary system.

5. Urinary system- A group of organs that remove waste from the blood Urinary system- A group of organs that remove waste from the blood This system includes the kidneys, ureters, urethra and the urinary bladder. This system includes the kidneys, ureters, urethra and the urinary bladder.

7. Uniary bladder - a hollow organ that stores urine until it is excreted. Uniary bladder - a hollow organ that stores urine until it is excreted. ureter - two tubes, each of which carries urine from a kidney to the bladder. ureter - two tubes, each of which carries urine from a kidney to the bladder. urethra - the tube that carries urine from the bladder out of the body. urethra - the tube that carries urine from the bladder out of the body.

8. Kidney two bean-shaped organs that take waste from the blood and produce urine. two bean-shaped organs that take waste from the blood and produce urine. Filters about 2,000L of blood a day. Filters about 2,000L of blood a day. contain microscopic filters that clean the blood. (CLEAN BLOOD) contain microscopic filters that clean the blood. (CLEAN BLOOD) A concentrated mixture of waste materials are collected in the kidneys for excretion. A concentrated mixture of waste materials are collected in the kidneys for excretion.

9. After blood is cleaned by the kidneys it is sent through a vein back to the rest of the body. After blood is cleaned by the kidneys it is sent through a vein back to the rest of the body. After blood extis the kidneys it After blood extis the kidneys it Has less water Has less water Cleansed of wastes Cleansed of wastes

10. Urine- a concentrated mixture of waste materials that forms in the nephrons of the kidneys. Urine- a concentrated mixture of waste materials that forms in the nephrons of the kidneys.

11. Urinating Expelling wastes from the urinary bladder Expelling wastes from the urinary bladder

12. Urea This is a harmful substance that is formed when cells use protein for energy. This is a harmful substance that is formed when cells use protein for energy.

13. Nephrons- Nephrons- a microscopic filter in the kidney that removes a variety of harmful substances from the blood. a microscopic filter in the kidney that removes a variety of harmful substances from the blood. Blood vessel pass through each one of these in the kidneys Blood vessel pass through each one of these in the kidneys

15. Hormones Your body fluids are regulated by hormones. Your body fluids are regulated by hormones. Antidiuretic (ADH)- Signals to your body that there is a water shortage. The kidneys are instructed to take back water from the nephrons and return it to the bloodstream creating less urine. Antidiuretic (ADH)- Signals to your body that there is a water shortage. The kidneys are instructed to take back water from the nephrons and return it to the bloodstream creating less urine.

16. Continued ….. When you are hydrated, smaller amounts of ADH are released. The kidneys react by allowing more water to stay in the nephrons and leave the body as urine. When you are hydrated, smaller amounts of ADH are released. The kidneys react by allowing more water to stay in the nephrons and leave the body as urine.

17. Disorders of the urinary system Bacterial infection- when bacteria gets into the bladder it causes an bladder infection. This causes a condition that is very painful and causes you to urinate a lot and it is painful to excrete urine. You can also have a urinary tract infection. If left untreated this infection could cause damage to the kidneys. Bacterial infection- when bacteria gets into the bladder it causes an bladder infection. This causes a condition that is very painful and causes you to urinate a lot and it is painful to excrete urine. You can also have a urinary tract infection. If left untreated this infection could cause damage to the kidneys.

18. Kidney stones Kidney stones- which are small, crystallized substances, such as calcium, that form in the kidney or other parts of the urinary tract. Kidney stones- which are small, crystallized substances, such as calcium, that form in the kidney or other parts of the urinary tract. Smaller kidney stones can pass out of the body on their own, although this can be painful. Smaller kidney stones can pass out of the body on their own, although this can be painful. Larger stones may require surgery, or they may be broken into smaller pieces with sound waves in a procedure called ultrasonic lithotripsy. Larger stones may require surgery, or they may be broken into smaller pieces with sound waves in a procedure called ultrasonic lithotripsy.

19. Diabetes-a disease caused by a malfunctioning pancreas that produces little or no insulin) can result in impaired blood flow through the kidneys. Diabetes-a disease caused by a malfunctioning pancreas that produces little or no insulin) can result in impaired blood flow through the kidneys. Bacteria that cause tuberculosis can travel from the lungs and infect the kidneys. Bacteria that cause tuberculosis can travel from the lungs and infect the kidneys. Drug use, including long-term use of some prescription medications as well as illegal drugs, can also cause kidney damage. Drug use, including long-term use of some prescription medications as well as illegal drugs, can also cause kidney damage. Certain birth defects may cause the kidneys to have abnormal shapes or to function improperly. Certain birth defects may cause the kidneys to have abnormal shapes or to function improperly.

20. Treatment of severe kidney disease may include kidney dialysis, a procedure in which blood is circulated through a machine that removes wastes and excess fluid from the bloodstream. Some may have to go their entire life to get dialysis treatment or wait for a kidney transplant. Treatment of severe kidney disease may include kidney dialysis, a procedure in which blood is circulated through a machine that removes wastes and excess fluid from the bloodstream. Some may have to go their entire life to get dialysis treatment or wait for a kidney transplant.kidney dialysiskidney dialysis

22. More than 38,000 people in the United States alone wait for a kidney transplant each year, and fewer than 12,000 of them receive this life- sustaining organ. More than 38,000 people in the United States alone wait for a kidney transplant each year, and fewer than 12,000 of them receive this life- sustaining organ.

23. In a kidney transplant, the donated kidney may come from a close living relative of the patient or from a person who has recently died. The donor kidney is removed by clamping and cutting the renal vein and artery (1). The diseased kidneys in the patient may be left in place, or one or both may be removed if they cause persistent infection or high blood pressure (2). The donor kidney is placed in the pelvis region of the recipient and the organ's renal vein and artery are attached (3). Both the donor and the recipient can survive in good health with only one functioning kidney to filter and regulate the composition of blood. In a kidney transplant, the donated kidney may come from a close living relative of the patient or from a person who has recently died. The donor kidney is removed by clamping and cutting the renal vein and artery (1). The diseased kidneys in the patient may be left in place, or one or both may be removed if they cause persistent infection or high blood pressure (2). The donor kidney is placed in the pelvis region of the recipient and the organ's renal vein and artery are attached (3). Both the donor and the recipient can survive in good health with only one functioning kidney to filter and regulate the composition of blood.

24. Let’s label your chart And learn how the kidneys filter blood. And learn how the kidneys filter blood.