Module_07_Lab_Worksheet_05202018.docx

2 in your own words describe the anatomy and function

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2. In your own words, describe the anatomy and function of the components that make up the renal corpuscle. A renal corpuscle is a tangled group of small blood vessels called a glomerulus which are designed to filter your blood. The Bowman’s capsule collects the filtered molecules and directs them into the tubing of your nephrons (Betts, 2017). 3. In general and in your own words, briefly describe the role of the three regions to the renal tubule section of a nephron. These regions are divided into the proximal convoluted tube, the Loop of Henle, and the distal convoluted tubule. The proximal tube is responsible for absorption of most nutrients and ultra filtrates. The Loop of Henle then continues the filtration of the rest of the ultra filtrates and mostly reabsorbs water into the blood. Lastly, the distal tubule reabsorbs water, calcium, sodium chloride, and regulates pH of the urine by absorbing bicarbonate (Betts, 2017). 4. How does antidiuretic hormone, aldosterone, atrial natriuretic peptide hormones influence the function of the collecting duct and overall blood pressure? ADH regulates the reabsorption of water in the collecting duct which prevents an increase in urine. The more water absorbed, causes an increase in BP. Aldosterone regulates the level of sodium and potassium in the body and can increase blood volume which may increase BP. Atrial natriuretic peptide reduces the amount of sodium ions in the blood by increasing the secretion of sodium in the kidneys. This helps lower the BP because water follows the sodium in or out of the kidneys (Betts, 2017). 5. What is the function of a urine test stripe in a urinalysis? What are some structures/compounds that will be visible within a microscope examination of centrifuged urine sediment? The function of the UA test strip is to test for diagnostic chemical markers in the urine such as WBCs, RBCs, bacteria, etc. Yeast and crystalloids can be seen under a microscope during examination of centrifuged urine (Betts, 2017). Part 01 Procedure: Nephron Anatomy 1. Working in groups of 2-3, you will draw the anatomical structures associated with a frontal plane view of a kidney, and a nephron on the various paper
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sheets and markers/pens provided. 2. For the frontal plane view of the kidney, make sure you include the following anatomical structures: a. Renal Capsule b. Renal Cortex c. Renal Column d. Renal Medulla/Pyramids e. Minor and Major Calyxes f. Renal Pelvis g. Ureter h. Renal Artery 3. For the nephron, make sure you include the following anatomical structures: a. Renal Corpuscle i. Glomerulus ii. Bowman’s Capsule b. Renal Tubule i. Proximal Convoluted Tubule (PCT) ii. Nephron Loop/Loop of Henle iii. Distal Convoluted Tubule (DCT) c. Collecting Duct d. Afferent and Efferent Arteriole e. Peritubular Capillaries f. Vasa Recta vessels g. Minor Calyx 4. Once you have completed the drawings of each section of the kidney, review the physiological role of each anatomical structure in both pictures. After your review, join with another group and have one group explain and define
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