7.2 study guide.docx - BIO 265 Section 7.2 Study Guide...

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BIO 265 Section 7.2: Study Guide Section 7.2 Objectives: Describe the process of filtration, reabsorption, secretion, and excretion. Describe the process of how the kidneys nephrons regulated the Glomerular Filtration Rate. 7.2 –FILTRATION, REABSORPTION, AND SECRETION 7.2.1 – Filtration Page 1
BIO 265 Describe the overall processes of filtration, reabsorption, secretion, and excretion. Explain what the Glomerular Filtration Rate (GFR) is. o
Describe how autoregulation of the afferent and efferent arterioles work to maintain the proper pressure in the Glomerulus. Draw your own diagram to show this process. o Test yourself: What would happen to pressure in the glomerulus if you dilated the afferent arteriole and constricted the efferent arteriole?
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BIO 265 o Video resource: Control of GFR: ? v=CMZ2AormwgU Describe how Net Filtration Pressure (NFP) is calculated. What are the different forces or pressures influencing the NFP and what influences them? o OPg: Oncotic Pressure (or Blood Colloidal Osmotic Pressure): 30 mmhg,
another inward force drawing fluid back into the blood, created by proteins in the capillaries o HPc: Hydrostatic Pressure of Filtrate in Capsule: The inward pressure that counter acts the outward pressure. Around 15mmhg. o Net filtration pressure = HPg – (HPc+OPg) or outward – the inward pressure o o Video Resources: Forces of Filtration by Handwritten Tutorials: Glomerular Filtration made easy by Biomed Sessions: Page 3
BIO 265 Nephrology - Glomerular Filtration by Armando Hasudungan

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