Preview

Physioex Renal

Better Essays
Open Document
Open Document
2267 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Physioex Renal
EXERCISE 9: RENAL SYSTEM PHYSIOLOGYHere is 9 got 95% Still need help on final 132 |

ACTIVITY 1: The Effect of Arteriole Radius on Glomerular Filtration Answers
1. According to your lab manual, in humans the glomerular filtration rate (GFR) ranges from _____ to _____ ml/minute. 80
140
2. When the radii of both the afferent arteriole and efferent arteriole were set at 0.45mm, the GFR was approximately ______ ml/minute.
a. 40
b. 60
c. 80
d. 120 C.
3. True or False: Drinking a lot of caffeine (coffee or cola) leads to an increased urine volume. This might result from a decrease in the radius of the efferent arteriole. True
4. What are two primary functions of the kidney? Excretion-filters water and solutes in the blood, the kidneys are able to excrete excess water
Regulation- regulates plasma osmolarity which is the concentration of solution expressed as osmoles of solute per liter of solvent, plasma volume, body's acid-base balance, and body's electrolyte balance.
5. What are the components of the renal corpuscle? Bowman's capsule- renal corpuscle consist of a ball of capillaries called glomerulus and enclosed by a fluid-filled capsule called Bowman's capsule
Glomerular Capillaries- this is another name for the renal corpuscle. An afferent arteriole supplies the blood to the glomerulus. The blood flows through the glomerular capillaries, protein-free plasma filters into the Bowman's capsule, and known as the glomerular filtration. The afferent arteriole then drains glomerulus of the remaining blood.
6. Starting at the renal corpuscle, list the components of the renal tubule as they are encountered by filtrate. 1.Proximal convoluted tubule
2.Loop of Henle (U-shaped hairpin loop)
3.Distal convoluted tubule- before emptying into a collecting duct, from collecting duct, filtrate flows and collects in the minor calyces.
7. Describe the effect of decreasing the afferent arteriole radius on glomerular



References: Brandis K., (2001). Research for Question 22: Fluid Physiology and other Mechanisms of Water Balance. Retrieved from:          http://www.anasthesiamcq.com/FluidBook/fl5_9.php Klabunde R. E., (1998-2010). Research on Question 22: Blood volume. Retrieved from:         http://www.cvcphysiology.com/Blood%20Pressure/BP025.htm Chang 19 to False

You May Also Find These Documents Helpful

  • Good Essays

    Bcmb 230

    • 6287 Words
    • 26 Pages

    a. collecting duct b. distal convoluted tubule c. descending loop of Henle d. capsular space…

    • 6287 Words
    • 26 Pages
    Good Essays
  • Powerful Essays

    In adults the GFR should be somewhere between 100 and 130, while in children it should be about 110 (1). Since the GFR is a measure of the kidney 's function it is used to help classify kidney disease. If GFR is too high or too low this would cause problems because 99% of formative urine needs to be reabsorbed. If GFR is too high, needed substances cannot be reabsorbed quickly enough and they would be lost in the urine. If GFR is too low, everything is reabsorbed, including wastes that are normally disposed of. The collecting duct is the key to determining the volume of filtrate that is released and how concentrated the urine…

    • 1658 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Kidney structure include the renal corpuscle that filters the blood, passing of urine, and different tubules (comprised of a dowman’s capsule and glomerulus). The renal corpuscle are made of partial cells, message cells, and podocytes. The various tubules are made of cuboidal epithelial cells and columnar (liveingstrong.com).…

    • 656 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Instructions: Answer the following questions completely to receive full credit. This assignment is to be computer generated. NO EXCPETIONS!!! Provide a cover page (all pertinent information) for ALL assignments. Make sure to CHECK SPELLING for ALL assignments. NO LATE ASSIGNMENTS WILL BE ACCEPTED. This worksheet is worth 54 points. 1. Differentiate between the afferent and the efferent arterioles. (2 points)  Blood supply to the glomerulus o afferent arteriole  feed the glomerular capillary bed o efferent arteriole  drains the glomerular capillary bed 2. Provide a two-word description each for the renal corpuscle and renal tubules. (2 points)  renal corpuscle o glomerulus & glomerular together  renal tubules o reabsorption & secretion 3. What will happen to the glomerular capillary pressure and filtration rate if you decrease the radius of…

    • 1137 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    9. Discuss and compare the structure and the functions of the ureters, urinary bladder, and urethra.…

    • 2060 Words
    • 9 Pages
    Satisfactory Essays
  • Powerful Essays

    Bio 169

    • 1122 Words
    • 5 Pages

    The renal corpuscle consists of two parts: glomerular capillaries and the Bownan’s capsule. A portion of the plasma is filtered into the capsular space due to the hydrostatic pressure of the blood.…

    • 1122 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Unit 12 Ass 1

    • 967 Words
    • 6 Pages

    I certify that the work submitted for this assignment is my own. I have clearly referenced any sources used in the work. I understand that false declaration is a form of malpractice.…

    • 967 Words
    • 6 Pages
    Good Essays
  • Better Essays

    Exrectory System

    • 3499 Words
    • 14 Pages

    Explain the functions of the components of a nephron, and relate those functions to cellular and histological specializations.…

    • 3499 Words
    • 14 Pages
    Better Essays
  • Powerful Essays

    PhysioEx 9 Review Sheet

    • 1071 Words
    • 4 Pages

    4. Describe the effect of decreasing the afferent arteriole radius on glomerular capillary pressure and filtration rate. How well…

    • 1071 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Here, acid-base balance and waste removal is achieved. This process is achieved by passive diffusion that involves the movement of molecules from the peritubular capillaries to the interstitial fluid within the nephron. It also involves active transport involving the movement of molecules via ATPase pumps that transport the substance through the renal epithelial cell into the lumen of the nephron (Boundless, 2016). This process differs from the reabsorption process in that it filters and cleans substances form the blood and do not retain them. Some of these substances include, potassium ions, hydrogen ions, urea, hormones, and others. Failure of the kidney to undergo this process allows wastes to be backed up in the system which endangers the organ systems in the…

    • 2281 Words
    • 10 Pages
    Good Essays
  • Good Essays

    Glomerulonephritis

    • 746 Words
    • 3 Pages

    The kidney performs many functions which include regulation of extracellular fluid and blood pressure, regulation of osmolarity, maintenance of ion balance, regulation of pH levels, excretion of waste, and the production of hormones. Although the kidney performs all these functions, the renal disease Glomerulonephritis, also known as glomerular nephritis and abbreviated GN relates to the excretion of waste. With this disease, the part of your kidney which is called the renal corpuscle is damaged. The renal corpuscle consists of glomerular capillary endothelium, a basal lamina, and the epithelium of Bowman’s capsule. Kidney function can be lost within weeks or months with this disease.…

    • 746 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Urinary Anatomy Phsyiology

    • 3974 Words
    • 16 Pages

    – 2 kidneys; bean-shaped organs located in the superior dorsal abdominal cavity that filter blood and make urine – Accessory structures – Ureter is a tube that carries urine from each kidney to – The single urinary bladder, located in the inferior ventral pelvic cavity.…

    • 3974 Words
    • 16 Pages
    Satisfactory Essays
  • Good Essays

    is true then passage through the pores will be hindered by the size of the…

    • 1089 Words
    • 5 Pages
    Good Essays
  • Better Essays

    The Role of the Nephron

    • 1996 Words
    • 8 Pages

    1. Filtration The renal artery carries blood into the kidney (approximately 600 mis of blood enters a kidney each minute). The renal artery then branches into arterioles which then branch intoaspecialized capillaries called the glomerulus. Because of the great difference in diameter between the renal artery and the glomerul us, blood entering the glomerulus is under very high pressure. This pressure forces about 20% of the blood plasma (about 120m1 of the 600 ml) out of the glomerulus and across the membrane of Bowman's…

    • 1996 Words
    • 8 Pages
    Better Essays
  • Good Essays

    The Excretory System

    • 868 Words
    • 4 Pages

    The functional and structural unit of the kidney is the nephron. The nephron produces urine and is the primary unit of homeostasis in the body. It is essentially a long tubule with a series of associated blood vessels. The upper end of the tubule is an enlarged cuplike structure called the Bowman's capsule. Below the Bowman's capsule, the tubule coils to form the proximal tubule, and then it follows a hairpin turn called the loop of Henle. After the loop of Henle, the tubule coils once more as the distal tubule. It then enters a collecting duct, which also receives urine from other distal tubules.…

    • 868 Words
    • 4 Pages
    Good Essays

Related Topics