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The Kidney

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by

Taylor Laughlin

on 5 February 2013

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Transcript of The Kidney

THE KIDNEY BY: TAYLOR What Is It? Kidneys are a small pair of organs, located in the lower back, bellow the human’s rib-cage.
Each kidney is on each side of the spine. They appear as a bean-shaped figure with a curved in side, about the size of a fist. Main Function Other Functions! Diagram!! Transplants How does it work? FUN FACTS! The kidneys main function is to get rid of the bad substances and waste products (like urea) by transferring it from the blood, to the urine. Urea (a.k.a carbamide) is the waste that the body produces after metabolizing protein. Urea gets rid of extra nitrogen from bodies system and is very soluble. The average human produces about 30 grams of urea a day. What is Urea? Adrenal gland- 2 glands that sit in one, like a pyramid on top of the kidney. Their main function is to manage how the body deals with stress. Whether its injuries, relationships, work, or disease. They determine the amount of energy needed for responses to stress, and all cells react accordingly. The Kidneys Basic Parts and Their Functions -The kidneys have a higher blood flow than the brain, liver, and heart!

-Each kidney is almost 4 ½ inches long and weighs about 4 to 6 ounces.

-Every day, a person's kidneys process about 200 quarts of blood to sift out about 2 quarts of waste products and extra water

-A healthy kidney works 24/7 to clean the blood.

-Kidneys filter about 2 gallons of blood in an hour. Cortex- Contains mostly nephrons and blood vessels. It filters the blood and removes waste products inside the body. Nephrons are the basic functional units of the kidneys. Each kidney contains one million or more nephrons. Medulla- Is the center of the kidney. The nephrons inside maintain the balance of water and salt inside the blood. Renal Vein- Blood vessels that carry deoxygenated blood out of the kidney. Renal artery- Blood vessels that carry blood to and from the kidneys. The blood in it contains glucose, oxygen and cellular waste products. Ureter- A long tube at the central portion of the kidney that funnels the urine to the bladder. -After you eat or drink a substance, it enters the stomach and breaks down into nutrients.

-The solid waste products are removed and the nutrients enters the bloodstreams.

- The nutrients in the bloodstream is used by the body for energy for many different things like growth, and repair.

- This produces waste, that the body need to get rid of. The kidneys step in and remove the waste.
-The kidneys also get rid of extra nutrients that the body doesn’t need.

-The kidney gets rid of this waste by turning it into urine and filtering into the bladder- removing it from the body. Organ Systems! There are 10 major organ systems that work together to make the body function. These systems include; Cardiovascular, Digestive, Endocrine, Integumentary, Muscular, Nervous, Reproductive, Respiratory, Skeletal, and last but not least the Urinary System. The Kidneys belong to the Urinary/Excretory Sytem. This system removes waste, and maintains water balance in the body. The Urinary System! Kidney Disease is when the nephrons inside the kidneys, are damaged. Because the nephrons act as blood filters and are needed to clean the blood, without them there is a buildup of waste and fluids, inside the body. Kidney Disease If one Kidney fails, it is possible to live with just one! Many people were either born with just one kidney or have gotten a transplant- leaving them with only one. You can live a full and healthy life with just one kidney. It can get rid of enough waste and fulfill all the functions it has to do for the body to be healthy and work properly. My mom donated her kidney to one of our good friends almost 2 years ago, and is living the exact same as she did before. She is 100% healthy and feels great! -All mammals have at least one kidney and some animals kidneys work more efficient than ours!
- Some examples of animals with kidneys are; dogs, cats, monkeys, horses, etc... Right now, an efficient artificial kidney is not available. But with science and technology growing, scientist will most likely be able to create one. For now replacing a kidney is only possible by someone donating it. Kidney Failure Artificial Kidney Animals Animals and humans both have kidneys but they are very different in the way they function and look. Animal kidneys can be different sizes depending on the animal (ex. an elephant and a bird). Humans and animals cannot donate to one another because of the different blood types. The animal body would reject the human kidney and would fight off anything trying to enter the system. PUPPY CAT HORSE MONKEY KIDNEY WITH DISEASE HEALTHY KIDNEY Body with a donated kidney! Kidney Transplant The recipient of the kidney keeps both failed kidneys as well as the donated and transplanted one. What Causes Kidney Failure? Many things can cause kidney failure but the most common issues are genetic diseases and glomerular diseases. Genetic diseases are conditions that run in the family like; polycystic kidney disease. This a disease where the normal kidney tissue is replaced by fluid-filled sacs. Glomerular diseases affect the tiny filtering units in the kidneys (called glomeruli).
Other ways to get kidney failure are if you have diabetes or high blood pressure. These are the two top reasons for kidney transplants for adults. -The kidneys stop our red blood cells from entering into the urine.

-They remove drugs from the body

-Balance the body's fluids

-Release hormones that control blood pressure

-Create an active form of vitamin D that stimulates strong, healthy bones Thank you for watching!
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