lab 10 report.docx

lab 10 report.docx - Renal Physiology EV4013 Week 11 Lab 10...

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01/04/19 Renal Physiology EV4013 Week 11, Lab 10. UL Student: Caoimhe Cooney (17241936)
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Caoimhe Cooney (17241936) Lab 10 Date: 01/04/19 Introduction: It is quite important to have some knowledge of the horse’s urinary system, so that when things are not right, the signs can be noticeable. The urinary system of the horse includes the kidneys, the ureters, the bladder and the urethra. There are many important functions such as the removal of waste products created by food and turned into energy. Another function is it will maintain the balance of electrolytes and water in the cells. One of the main functions of the urinary system is the production of hormones which are called erythropoietin and renin. These hormones are critical when maintaining healthy blood pressure, producing blood cells, and also absorbing salt appropriately. The urinary system also produces vitamin D (D. Fitzgerald, Bedenice, J. Divers & Lynn Sanderson, n.d.). One of the main objectives of this experiment is of understand the concept of glomerular flow rate. Glomerular filtration is the first step in the production of urine. Glomerular filtration takes place in the kidneys, it involves the filtration of excess fluid and waste products out of the blood and into the collecting tubules, where they are removed from the body (Khan Academy, n.d.). The next objective in this experiment is to understand the factors that affect urine formation. Urine is formed in the kidneys through 1 Figure 2: The Urinary System in the Female Horse (D. Fitzgerald, Bedenice, J. Divers & Lynn Sanderson, n.d.) Figure 1: The Urinary System in the Male Horse (D. Fitzgerald, Bedenice, J. Divers & Lynn Sanderson, n.d.) Figure 3: Glomerular Capsule (Khan Academy, n.d.).
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Caoimhe Cooney (17241936) Lab 10 Date: 01/04/19 3 different stages. Glomerular filtration is the first, where the plasma portion which is free from protein is filtered into the renal tubules to form a ultra-filtrate. During the second stage the substances which are unable to be filtered in the glomerular are excreted from the blood stream to the filtrate in the tubules, known as tubular secretion. The third process is known as selective reabsorption of the ultra-filtrate by the renal tubules. This is when the filtrate is passed through different renal tubules and collecting duct. After all the processing, the ultra- filtrate becomes urine that will flow into the bladder and it is then stored until the micturition reflex is initiated. Thus, any factors that affect any of the three stages will influence the urine volume and osmolarity (N. Watcharapariyapat, N.D.). Materials and Methods: The procedure followed for this experiment is outlined in the EV4013 practical manual, entitled “Lab 10: Renal Physiology”. Results: Many problems occurred during the experiment, which lead to inaccurate results. The few measurements obtained are recorded below.
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  • Fall '19
  • Caoimhe Cooney

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