Human Body Unit Part IX/XIII
New Area of Focus: The Excretory System New Area of Focus: The Excretory System Copyright © 2010 Ryan P. Murphy
The excretory system provides a pathway to remove wastes from the body. The excretory system provides a pathway to remove wastes from the body. Copyright © 2010 Ryan P. Murphy
The excretory system removes excess… Water Salts CO 2 Urea Oxygen Nutrients Plasma Air Nutrients Marrow Cells Oxygen Copyright © 2010 Ryan P. Murphy
The excretory system removes excess… Water Salts CO 2 Urea Oxygen Nutrients Plasma Air Nutrients Marrow Cells Oxygen Copyright © 2010 Ryan P. Murphy
Water Salts CO 2 Urea The process that removes these wastes is called excretion. Copyright © 2010 Ryan P. Murphy
Water Salts CO 2 Urea Which two do the lungs get rid of? Copyright © 2010 Ryan P. Murphy
Water Salts CO 2 Urea Which two do the lungs get rid of? Copyright © 2010 Ryan P. Murphy
The remaining organs of the excretory system are the
The remaining organs of the excretory system are the kidneys, Copyright © 2010 Ryan P. Murphy
The remaining organs of the excretory system are the kidneys, liver, Copyright © 2010 Ryan P. Murphy
The remaining organs of the excretory system are the kidneys, liver, and skin. Copyright © 2010 Ryan P. Murphy
Which organ of the excretory system does this picture represent?
The Kidneys: They filter waste products from the blood to keep it clean and balanced. The Kidneys: They filter waste products from the blood to keep it clean and balanced. Copyright © 2010 Ryan P. Murphy
Bean shaped organ about size of fist located near the middle of the back. Copyright © 2010 Ryan P. Murphy
Which letter below is this Cat’s Right Kidney?
Copyright © 2010 Ryan P. Murphy
The kidneys process about 200 quarts of blood and produce 2 quarts of waste product (urine). Copyright © 2010 Ryan P. Murphy
The kidneys process about 200 quarts of blood and produce 2 quarts of waste product (urine). –The urine travels through the ureters to the bladder Copyright © 2010 Ryan P. Murphy
Waste comes from old tissues / cells and from food as the body uses energy and repairs itself. Copyright © 2010 Ryan P. Murphy
Waste comes from old tissues / cells and from food as the body uses energy and repairs itself. –This waste, if not removed will build-up and cause damage. Copyright © 2010 Ryan P. Murphy
Waste comes from old tissues / cells and from food as the body uses energy and repairs itself. –This waste, if not removed will build-up and cause damage. Copyright © 2010 Ryan P. Murphy
Each kidney has how many nephrons? –A.) ½ a nephron –B.) One full nephron –C.) 6 nephrons –D.) A million nephrons Copyright © 2010 Ryan P. Murphy
Each kidney has how many nephrons? –A.) ½ a nephron –B.) One full nephron –C.) 6 nephrons –D.) A million nephrons Copyright © 2010 Ryan P. Murphy
The Kidney Copyright © 2010 Ryan P. Murphy
The Kidney
Copyright © 2010 Ryan P. Murphy
Glomerulus
Filtration of waste
Glomerulus Filtration of waste Bow Man’s Capsule
Glomerulus Filtration of waste Bow Man’s Capsule Reabsorption
Glomerulus Filtration of waste Bow Man’s Capsule Reabsorption
Glomerulus Filtration of waste Bow Man’s Capsule Reabsorption
Glomerulus Filtration of waste Bow Man’s Capsule Reabsorption
Glomerulus Filtration of waste Bow Man’s Capsule Reabsorption Copyright © 2010 Ryan P. Murphy
In the nephron, a tiny blood vessel (capillary) -intertwines with a tiny urine- collecting tube called a tubule. Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Urea Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Urea Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Salts Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Water Urine is about 96% Water. Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Water Protein Blood Cell Copyright © 2010 Ryan P. Murphy
The tiny blood vessels in the nephrons act like strainers. –Waste in the blood spills out through the holes while the nutrients do not. Water Protein Blood Cell Too Large to fit through Copyright © 2010 Ryan P. Murphy
The kidneys measure out chemicals such as sodium, phosphorus, and potassium and release them back to the blood to return to the body. Copyright © 2010 Ryan P. Murphy
The kidneys measure out chemicals such as sodium, phosphorus, and potassium and release them back to the blood to return to the body. Reabsorption Copyright © 2010 Ryan P. Murphy
The kidneys measure out chemicals such as sodium, phosphorus, and potassium and release them back to the blood to return to the body. –The kidneys regulate / balance the bodies level of these substances. Reabsorption Copyright © 2010 Ryan P. Murphy Learn more about the kidneys and kidney diseases at…
The amount of water and salts that you consume changes your urine. –Which person drank plenty of water this morning? Copyright © 2010 Ryan P. Murphy
The amount of water and salts that you consume changes your urine. –Which person drank plenty of water this morning? Copyright © 2010 Ryan P. Murphy
The amount of water and salts that you consume changes your urine. –Which person ate lots of salty junk food this morning? Copyright © 2010 Ryan P. Murphy
If you eat lots of salty foods you will produce less urine. That urine will have less water in it. Copyright © 2010 Ryan P. Murphy
If you eat lots of salty foods you will produce less urine. That urine will have less water in it. –Your kidneys control the amount of water in your body. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. –Copious: Abundant in supply or quantity. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. –Copious: Abundant in supply or quantity. –Not bright yellow once a day. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. –Copious: Abundant in supply or quantity. –Not bright yellow once a day. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. –Copious: Abundant in supply or quantity. –Not bright yellow once a day. Copyright © 2010 Ryan P. Murphy
As a general rule, you want your urine to be clear and copious. –Copious: Abundant in supply or quantity. –Not bright yellow once a day. Copyright © 2010 Ryan P. Murphy
Should the person below drink more hydrating fluids?
Should the person below drink more hydrating fluids? Okay
Should the person below drink more hydrating fluids?
Should the person below drink more hydrating fluids? Yes
Should the person below drink more hydrating fluids?
Should the person below drink more hydrating fluids? Not needed.
Should the person below drink more hydrating fluids?
Learn more about your urine at… incontinence-oab/features/the-truth- about-urine incontinence-oab/features/the-truth- about-urine
Can you drink your own urine? –If your stuck on a raft etc. in a survival situation in the middle of the ocean.
Drinking your urine may keep you alive an extra day or two. –Urine is mostly water so it can replenish lost water. 95% –Sterile so it won’t give you disease. –The other 5% is going back to your kidneys and after a day or two this highly concentrated waste can cause kidney failure. –So your in trouble from total dehydration, or complete kidney failure.
Kidney Stone: A hard mass formed in the kidneys, typically consisting of insoluble calcium compounds.
Kidney Stones: Cause severe stomach and back aches that go down to the genitals and last for a long period.
Treatment –Dietary Treatment (Changes) –Pass the stone (if small) –Surgery –Shockwave Surgery
Treatment –Dietary Treatment (Changes) –Pass the stone (if small) –Surgery –Shockwave Surgery –Treatment in 1935
Video Link! Khan Academy, Kidney and Nephron (18 minutes) - Advanced – kidney-and-nephron?playlist=Biologyhttp:// kidney-and-nephron?playlist=Biology Copyright © 2010 Ryan P. Murphy
Urine travels from the kidneys through narrow tubes called ureters to the bladder. Urine travels from the kidneys through narrow tubes called ureters to the bladder. Copyright © 2010 Ryan P. Murphy
Urinary Bladder: Stores urine until excretion. Urinary Bladder: Stores urine until excretion. Copyright © 2010 Ryan P. Murphy
Activity! Step by step drawing of the excretory system. –(1/2 a page) Start on next slide. Copyright © 2010 Ryan P. Murphy
Excretory System Available Sheet.
Copyright © 2010 Ryan P. Murphy
Kidneys Copyright © 2010 Ryan P. Murphy
Kidneys Ureters Copyright © 2010 Ryan P. Murphy
Kidneys Ureters Bladder Copyright © 2010 Ryan P. Murphy
Kidneys Ureters Bladder Urethra Copyright © 2010 Ryan P. Murphy