Urine Connection Lab Report
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Project 3.4.3: The Blood/Urine Connection
Introduction
Water is obtained from food, drink, and from reactions that occur in the body. The kidneys process and balance the amount of water that enters your system with the amount that is released. The digestive system helps rid the body of solid wastes, but some of the wastes in the blood are the remnants of the digestion of food products. For example, when amino acids are broken down by the body, ammonia (NH3) is formed. This product is so toxic that only small amounts can be tolerated by the body. The liver steps in and helps convert this poison to urea, a safer version of this waste product that can be easily removed in urine.
The urinary system not only controls the body’s fluid …show more content…
Use the following websites, along with textbooks or other resources you may find to explore the function of the nephron:
Sumanas, Inc. - The Mammalian Kidney (great animations!) http://www.sumanasinc.com/webcontent/animations/content/kidney.html
National Space Biomedical Research Institute - The Formation of Urine http://www.nsbri.org/HumanPhysSpace/focus4/ep-urine.html
Campbell Biology - Physiology of the Nephron http://ex-anatomy.org/gener.html
IntellimedHuman Anatomy Online: Kidney Blood Filtering http://www.innerbody.com/image/card08.html
9. Imagine how the 3-D structure of the nephron would appear. For example, the Bowman’s capsule is a cup-like chamber containing the glomerulus. The filtrate that occurs due to high pressure in the glomerulus empties into the Bowman’s capsule and drains into the proximal convoluted tubule. If desired, sculpt a 3-D Bowman’s capsule out of clay and place it on top of your diagram.
10. Use markers or colored pencils to color all vessels containing blood red and all the tubules that would contain filtrate or urine yellow.
11. Using an orange marker, label the following components of the nephron:
Efferent arteriole
Afferent arteriole …show more content…
Return to the Biology Mad animation http://www.biologymad.com/resources/kidney.swf and click on the structures of the nephron to find out what happens inside the nephron. Pay attention to what substances are moving where.
13. Use a black marker to draw arrows that show the general direction of filtrate and material movement in and out of the nephron’s structural components.
14. Research the points in the nephron’s structure where the three key processes of filtration, reabsorptionand secretion occur. Think about how these three processes relate to the composition of blood and to urine.
15. Use a green marker to label where filtration, reabsorption and secretion occur along the nephron.
16. Use purple arrows to show where glucose reabsorption occurs in the nephron. Make sure the arrows are pointing in the correct direction. Is glucose moving from the filtrate to the blood or from the blood to the filtrate?
17. Use blue arrows to show where water reabsorption occurs in the nephron. Make sure the arrows are pointing in the correct direction. Is water moving from the filtrate to the blood or from the blood to the filtrate? NOTE: This may occur in multiple locations in the
Project 3.4.3: The Blood/Urine Connection
Introduction
Water is obtained from food, drink, and from reactions that occur in the body. The kidneys process and balance the amount of water that enters your system with the amount that is released. The digestive system helps rid the body of solid wastes, but some of the wastes in the blood are the remnants of the digestion of food products. For example, when amino acids are broken down by the body, ammonia (NH3) is formed. This product is so toxic that only small amounts can be tolerated by the body. The liver steps in and helps convert this poison to urea, a safer version of this waste product that can be easily removed in urine.
The urinary system not only controls the body’s fluid …show more content…
Use the following websites, along with textbooks or other resources you may find to explore the function of the nephron:
Sumanas, Inc. - The Mammalian Kidney (great animations!) http://www.sumanasinc.com/webcontent/animations/content/kidney.html
National Space Biomedical Research Institute - The Formation of Urine http://www.nsbri.org/HumanPhysSpace/focus4/ep-urine.html
Campbell Biology - Physiology of the Nephron http://ex-anatomy.org/gener.html
IntellimedHuman Anatomy Online: Kidney Blood Filtering http://www.innerbody.com/image/card08.html
9. Imagine how the 3-D structure of the nephron would appear. For example, the Bowman’s capsule is a cup-like chamber containing the glomerulus. The filtrate that occurs due to high pressure in the glomerulus empties into the Bowman’s capsule and drains into the proximal convoluted tubule. If desired, sculpt a 3-D Bowman’s capsule out of clay and place it on top of your diagram.
10. Use markers or colored pencils to color all vessels containing blood red and all the tubules that would contain filtrate or urine yellow.
11. Using an orange marker, label the following components of the nephron:
Efferent arteriole
Afferent arteriole …show more content…
Return to the Biology Mad animation http://www.biologymad.com/resources/kidney.swf and click on the structures of the nephron to find out what happens inside the nephron. Pay attention to what substances are moving where.
13. Use a black marker to draw arrows that show the general direction of filtrate and material movement in and out of the nephron’s structural components.
14. Research the points in the nephron’s structure where the three key processes of filtration, reabsorptionand secretion occur. Think about how these three processes relate to the composition of blood and to urine.
15. Use a green marker to label where filtration, reabsorption and secretion occur along the nephron.
16. Use purple arrows to show where glucose reabsorption occurs in the nephron. Make sure the arrows are pointing in the correct direction. Is glucose moving from the filtrate to the blood or from the blood to the filtrate?
17. Use blue arrows to show where water reabsorption occurs in the nephron. Make sure the arrows are pointing in the correct direction. Is water moving from the filtrate to the blood or from the blood to the filtrate? NOTE: This may occur in multiple locations in the